DePIN Hardware Economics: Payback and ROI

Introduction

Some DePIN networks involve hardware a member of the public can run: Helium's documentation describes its Mobile Wi-Fi Hotspots as low-cost, easy-to-deploy Wi-Fi radios (read 3 November 2026), while Filecoin's storage providers and Render's GPU operators need heavier equipment. A seller's pitch may give a payback date, a number of months after which the device has earned back what it cost. This page is about how to test that number, and about the dated rule changes on the four networks this guide reads.

Hardware is a different exposure from holding a token. A token carries no power or connection bill, though how quickly and at what cost it can be sold depends on the trading route and its liquidity. A device costs money on the day you buy it, keeps costing money in power and connection while it runs, and pays you back in a token whose price and issuance you do not set. Our DePIN explained guide sets out how these networks work; this page takes the buyer's side of the same model.

The arithmetic of payback is simple, and that is the danger. Four inputs decide it: what the device costs, what it costs to run, how many tokens it earns, and what those tokens sell for. A seller who chooses the last two can produce almost any payback date, and every one of those choices is about the future. The useful question is not what the payback date is, but how much it moves when the uncertain inputs move against you.

Two kinds of figure appear on this page, and they are kept apart. Illustrative figures are round numbers chosen to show the method, and each is labelled illustrative wherever it appears; they describe no real device, tariff or network. Real figures come from a named source and carry the date they were read. Token prices come from DefiLlama's price API and network rules from each network's own documentation, all read on 3 or 4 November 2026 with our verification client.

The page names no device maker and links to no device. Hardware vendors appear in this guide only as a category, because a buying guide for devices would turn a risk page into a sales page. Where a network's own documentation points buyers to a route, the page says so, because that route is part of how a reader avoids the fake-hardware problem covered further down.

The guide runs in order. It sets out the payback arithmetic step by step, with an illustrative example and a chart of how the payback date moves when its inputs fall. It then gives the dated record from Helium, and covers what changes when a network migrates or rewrites its rules, the professional end of the market on Filecoin, and pre-sales and fake devices. It ends with reader rules you can apply to any device and any network.

The Payback Arithmetic, Step by Step

Payback is the number of months it takes for the net value a device produces to equal what you paid for it; worked out from assumed inputs, it is arithmetic, not a forecast. Net value means rewards sold for pounds, minus the running costs over the same months. The calculation has four parts, and each one hides an assumption.

Step one: costs in pounds

Start with what leaves your bank account. The device's price is the obvious cost, but it is not the only one:

• The device itself, plus any mounting, antenna or installation it needs.
• Electricity, at the unit rate on your own bill, for every hour the device runs.
• Connection: an internet line the device uses, or a share of one.
• On some networks, tokens you must lock or burn to take part, such as Filecoin's collateral or a registration fee paid in the network's token.
• Your time to set it up and keep it running, which a seller's chart never prices.

Electricity is easy to underestimate because it is small per hour and constant over years. A device that draws 12 watts all the time uses 105 kilowatt-hours a year; at an illustrative 25p per kilowatt-hour, that is about £26 a year. Use the unit rate on your own bill rather than a figure from a seller.

Measuring running costs rather than guessing them

Running costs are the one input you can measure yourself, and they are worth measuring before you rely on anyone's estimate. A plug-in energy monitor between the device and the socket shows its actual draw over a week, which is a better guide than a specification sheet. Multiply the weekly kilowatt-hours by 52 and by your unit rate, and you have the annual electricity cost on your own tariff.

Connection and hosting follow the same logic. A device that shares your home broadband adds little, but a device that needs its own line, a business connection or a rack in a data centre adds a monthly bill that a seller's chart may leave out. Add a replacement allowance too: hardware fails, and a device that fails before it pays back turns the remaining payback into a loss. None of these costs depends on the network's rules or the token's price, which makes them the firmest numbers in the whole calculation.

Step two: rewards in tokens

A device earns the network's token under the network's current rules. Three things decide how many: the reward rule itself, the total issuance it divides, and how many other contributors share that issuance. A seller's estimate usually takes all three from the day of the sale. Each of them can change after you buy, and the record further down shows each of them changing.

The reward rule differs by network. Helium's documentation describes Hotspots earning for data transfer, Render's describes operators rewarded per epoch for completed jobs plus availability rewards for uptime, Filecoin's describes block rewards for providers with at least 10 TiB of storage power, and Bittensor's describes miners scored by validators (read 3 and 4 November 2026). Before estimating any reward, find which of these rules the device is earning under.

Step three: from tokens to pounds

Rewards only pay back a device when they are sold, or when you count them at a price you could sell them for. The price you get is the market price on the day you sell, less the exchange's fees and the spread, and it may be far from the price on the day you bought the device. If you hold rewards rather than sell them, you are adding a token position to the hardware position, with the token risk that comes with it, and the custody of the wallet they sit in. Our non-custodial wallet comparison covers where to keep them.

Selling small amounts has its own cost. Each sale may carry an exchange fee and a spread, and moving tokens from the network's chain to an exchange can carry a transaction fee on that chain, so selling a few tokens at a time can give up a noticeable share of each month's rewards. A payback estimate should either include those costs or say that it leaves them out.

Step four: the payback period

Divide the cost by the monthly net value. In the illustrative example used below, a £400 device earns 30 tokens a month, sold at an illustrative £0.50 each, so it brings in £15 a month; less about £2.19 a month of electricity, the net is about £12.81, and the device pays back in about 31 months. Every figure in that sentence is illustrative, and the next section shows why the last one is the least reliable.

Testing a Payback Date Against Lower Values

A payback date is worth reading only if it survives lower inputs. The table repeats the illustrative example under four cases. The device costs £400 throughout and electricity about £2.19 a month; the reward and the token price change.

Our arithmetic on the illustrative inputs gives payback periods of about 31, 58, 75 and 228 months. The combined case is about 19 years; no device working life is established by these inputs. Halvings are not hypothetical: Helium halves net issuance every two years under its HIP 20 schedule, and Bittensor halves emission at published issuance thresholds, according to their documentation (read 3 November 2026).

The break-even token price

The same arithmetic can be turned round. Instead of asking how long a device takes to pay back at an assumed price, ask what price the token must hold for the device to pay back within a life you choose. Take the illustrative device again, with an illustrative working life of 48 months: its costs over that life are £400 plus 48 months of electricity at about £2.19, roughly £505 in all, and it earns 30 tokens a month, or 1,440 tokens over the 48 months.

Dividing the costs by the tokens gives a break-even price of about £0.35 a token, by our arithmetic on those illustrative inputs. If the token trades below that for most of the device's life, the device does not pay back within it, and a halving of rewards partway through raises the break-even price further. The figure gives you a single number to set against the token's market price, and that is easier to watch than a payback date.

An illustrative case with collateral

Some networks ask contributors to lock tokens as well as buy hardware, as Filecoin does with its collateral. Take an illustrative operator who locks 1,000 tokens bought at £1 each, alongside the hardware. If the token's price halves while the tokens are locked, the collateral is worth £500 less before a single reward is counted, and the operator cannot sell it to limit the loss while it stays locked.

The rewards in that case are paid in the same token, so they lose value at the same moment. The token price affects both the fiat value of future rewards and the fiat value of locked collateral. Every figure in that example is illustrative, but the structure is the one Filecoin's documentation describes, with initial pledge collateral committed for each sector (read 3 November 2026).

The competition term

The table holds the number of other contributors constant, and real networks do not. When total issuance and a device's credited work are fixed, a change in the competing credited work changes that device's share. A payback chart drawn when few devices are running will overstate what each one earns once many more arrive, and the arrivals are often prompted by the same chart.

What the test does not include

The four cases leave out risks that are harder to put in a table: the device failing, a firmware update ending support, the network changing what it rewards, and the time you spend. Each of them can only make the payback longer. A payback that only works in the first row of the table is a payback that depends on nothing going wrong.

Device failure shows why. If the illustrative device in the table stops working at month 20 of its 31-month payback, it has returned about £256 by our arithmetic, roughly two-thirds of its £400 cost, and the rest is a loss unless the device can be repaired or replaced under warranty. A shorter payback leaves less exposed to that kind of event.

What Contributing Looks Like on Each Network

The four networks in the DePIN explained guide ask very different things of a contributor. What a device does, and what it is rewarded for, decides which of the payback inputs matter most.

Helium: radios rewarded for data

Helium's documentation describes two kinds of Hotspot: devices that provide LoRaWAN coverage for Internet of Things sensors, and Mobile Wi-Fi Hotspots, which it calls low-cost, easy-to-deploy Wi-Fi radios (read 3 November 2026). It also describes a Helium Plus programme through which owners of existing Wi-Fi networks that support Passpoint can join the Mobile network. On the Mobile side, the documentation says Hotspots earn rewards for data transfer, based on the amount of eligible data passed through the Hotspot, and that a radio's readiness and quality of service can affect its eligibility. Its HNT token page still uses the word miners for the participants it pays to keep transmitting data (read 3 November 2026), but no mining in the Bitcoin sense is involved: the reward follows data passed, not computation.

For a buyer, the data-transfer rule moves the payback question from the device to its location. A Hotspot earns for data that passes through it, so a radio where few devices connect earns little, however capable it is. Any payback estimate for a Helium device should say what traffic it assumes, and where.

Filecoin: storage at data-centre scale

Filecoin's contributors are storage providers, and its documentation describes proving each sector of 32 GiB or 64 GiB once in every 24-hour period, with 30-minute deadlines to answer each challenge, and a minimum of 10 TiB of storage power to be eligible for block rewards (read 3 November 2026). The professional section below covers the collateral and penalties; the point here is scale. Filecoin's ROI guide says hardware and collateral costs will likely require outside financing (read 3 November 2026).

Render: GPUs rewarded for jobs and uptime

Render's operators contribute graphics processors, and its knowledge base describes rewards allocated epoch by epoch, typically over a week, from a log of the jobs each node completed (read 3 November 2026). Its proposal RNP-015 adds availability rewards, which it says compensate nodes for uptime, and which it describes as helping to offset some earnings volatility through a stipend, because operators carry costs like electricity and maintenance (read 4 November 2026). Render's knowledge base also announces a 32 GB minimum video-memory option for Tier 2 jobs alongside support for a new generation of graphics cards (read 4 November 2026), a reminder that the hardware a job needs can change.

Bittensor: models competing for a place

Bittensor's miners are hotkeys registered on a subnet that produce whatever the subnet's mechanism demands, and validators score them by setting weights, according to its documentation (read 3 November 2026). Places are limited. The documentation says a subnet holds at most a set number of neurons, 256 by default and no fewer than 64, that registering on a full subnet evicts the lowest-ranked neuron that is not immune, and that a newly registered neuron is protected for an immunity period and then competes like everyone else. Registration is burn-based, so a place costs TAO, and it can be lost to a better-scoring newcomer.

The Record: Helium's Rewards in Dated Steps

This section uses Helium's dated rule changes and HNT price observations. The table sets each dated rule change beside HNT's price on that day, from DefiLlama's price API at 12:00 UTC.

What the table shows

A reward of a fixed number of HNT was worth very different sums at each date. One HNT was worth $29.11 on 1 November 2021 and $0.338 on 3 November 2026, according to DefiLlama's price API, which by our arithmetic is about 1.2% of the earlier value. Over the same years, the pool of new HNT halved on schedule, so a device that earned the same share of the network would have received fewer tokens, each worth less. To assess a historical payback chart, inspect the reward schedule and token-price assumptions it actually used.

To see what that means in money, take an illustrative device earning 100 HNT a month. By our arithmetic from DefiLlama's prices in the table, a month's rewards would have been worth about $1,386 at the 1 August 2021 price and about $23.70 at the 6 July 2026 price. The 100 HNT is illustrative; the prices are not, and the fall between them is the record's main lesson for anyone weighing a device priced against a token.

The 1 November 2021 row is not a rule change. It is in the table because it is the earlier date the DePIN explained guide uses for its price comparison, five years before this page's reads, and the row says so. The other dates are the ones on which Helium's rules changed.

The price did not only fall. HNT was $1.67 at the second halving date, 1 August 2023, and $2.93 at the third, 1 August 2025, according to DefiLlama's price API, so a device owner in that period saw the token rise between two cuts in issuance. The lesson of the table is the range of outcomes, not a direction: a payback estimate that assumes one price has to be tested against the spread of prices the record actually shows.

What the record cannot show

The table gives prices and rule changes, not earnings per Hotspot. A history of what typical Hotspots earned over time would need Helium's own data, and this page could not read it on 3 or 4 November 2026: the Helium Foundation's site did not respond to our verification client, and Helium's oracle-data documentation describes requester-pays files and also points Mobile users to public Apache Iceberg tables at no cost per read, with a switch-over due to complete on 1 November 2026 (read 3 November 2026); it does not say which earnings series those tables hold. The record says what is sourced and stops there. Treat any chart of historical Hotspot earnings you meet elsewhere as a claim to check, with its source and dates.

When a seller offers earnings history, ask where it comes from. Earnings measured by the network itself, with the date range and the number of devices behind the average, are worth reading; an average from a seller's own fleet, or from a few well-placed devices, tells you what the best cases earned rather than what a typical device can expect.

The other networks' price records point the same way where they were read. FIL was $62.80 on 1 November 2021 and $0.859 on 3 November 2026, and RENDER was $2.02 on 18 April 2023 and $1.48 on 3 November 2026, according to DefiLlama's price API. These observations are denominated in US dollars; this page did not read sterling prices for those dates.

When a Network Changes Its Rules or Its Chain

A device earns under rules that the network can change after you buy. Three of the four networks in the DePIN explained guide, Helium, Render and Bittensor, have changed their rules or moved their token since 2023, and each change altered what devices or their owners had to do.

Helium's move to Solana

Helium's documentation says the network initially operated on its own blockchain and completed a migration to Solana on 18 April 2023, and it still hosts an L1 migration tool that migrates a wallet from its Helium address (read 3 November 2026). For a Hotspot owner, the move meant new wallets and new tools for the rewards the device earned. If the chain is new to you, our Solana guide explains it.

Helium's retired coverage mechanism

Helium's documentation on oracle data says Proof of Coverage was removed from the Helium networks as of 6 July 2026, with its beacon, witness and entropy data kept only for historical reference. The same documentation describes Hotspots earning rewards for data transfer: on the Mobile network, based on the amount of eligible data passed through the Hotspot, and with a radio's readiness and quality of service affecting its eligibility (read 3 November 2026). A device bought for coverage rewards now earns under different rules, and a payback chart drawn for coverage describes a network that no longer works that way.

The token the rewards are paid in has changed too. Helium Improvement Proposal 138, listed as deployed in the HIP repository's index (read 4 November 2026), set out phasing out the subnetwork tokens IOT and MOBILE and rewarding participants directly in HNT. A Hotspot owner who planned around rewards in one token was paid, after the change, in another.

Render's token upgrade

RNP-006, created on 2 November 2023 and read on 4 November 2026, describes the Solana token upgrade and says holders can upgrade RNDR to RENDER whenever they choose. It allocates up to 1.14 million RNDR over the first year for Ethereum transfer subsidies and provides for an assistant to pay gas for one transfer per eligible wallet for three months, with holders paying gas after that period. This proposal does not establish the payments actually made.

Bittensor's rebuilt rewards

Bittensor's dTAO upgrade, shipped in the subtensor release v2.0.0 on 13 February 2025, gave each subnet its own token and pool and set emissions by subnet token prices. Bittensor's documentation describes miners as hotkeys registered on a subnet that produce whatever the subnet's mechanism demands, scored by validators, and says subnet owners can change how each block's emission is split (read 3 November 2026). A miner's reward depends on rules set subnet by subnet, by people the miner does not choose.

What the four changes have in common

The four changes differ in kind, but they share a pattern that matters to anyone holding hardware. Each was made by the network or its governance, not by the contributors who had already bought equipment. Each changed either what a device earns or what its owner has to do to keep earning. A payback chart needs the rule version and dates it assumes; the cited records do not establish what an earlier chart included. A device owner's protection against that pattern is not a better forecast but a shorter payback, a smaller purchase, or the decision to hold the token instead.

None of this means the changes were wrong for the networks. Moving to a faster chain, retiring a mechanism that could be gamed, or tying rewards to prices may all have been sound decisions. The point for a buyer is narrower: the rules a device is bought under are not the rules it will earn under for its whole life.

The Professional End: Filecoin Storage Providers

Not every DePIN network is a home-hardware network. Filecoin's storage providers run data-centre equipment, and Filecoin's own documentation describes the business in terms a home buyer should read before assuming a storage node is like a Wi-Fi radio.

What a provider must lock up

Filecoin's documentation lists three collateral mechanisms: initial pledge collateral with each sector, block rewards held as collateral while they vest, and storage deal provider collateral that aligns a provider's incentives with its client's (read 3 November 2026). It also says a provider needs at least 10 TiB of storage power to be eligible for block rewards. The documentation says Filecoin uses upfront token collateral, as in proof-of-stake protocols, proportional to the storage hardware committed (read 3 November 2026). It is in FIL, so a provider's locked capital rises and falls with the token while it stays locked.

What a provider can lose

The documentation's slashing page lists the penalties: fault fees while a sector is offline, which it says continue until the provider's wallet is empty and it is removed from the network; a sector penalty once a fault is detected; termination fees when a sector leaves the network; and consensus fault slashing for providers that act maliciously. For providers with a history of acting honestly, the same page lists exceptions, including no penalty in the current proving period after a missed proof and no fees if the sector is recovered in a later proving period (read 3 November 2026). Downtime can therefore cost a provider tokens it has already committed, not only the rewards it misses.

How Filecoin itself frames the return

Filecoin's guide to a provider's return on investment lists the inputs, and its own wording is cautious (read 3 November 2026):

• The hardware and the FIL collateral, which it says are significant and will likely require financing from investors, venture capitalists or banks.
• Block rewards, which it says are subject to the volatility of the FIL token price.
• The cost of sales, including acquiring customers and marketing.
• The total cost of ownership, including backups, data ingest and retrieval, and data preparation.
• The growth of the network and of demand for storage, which it says can raise or lower the return.

A network whose own documentation describes outside financing and price volatility as part of the business is describing a professional operation. Anyone offered a small-scale Filecoin storage package should set that offer against Filecoin's own description of the costs.

What a home buyer should take from it

Filecoin's documentation is useful even to someone who will never run a storage node, because it states plainly what other networks' sellers often leave out. The costs are large and partly paid in the network's token, the rewards are volatile, penalties fall on downtime, and the return depends on how demand grows. Each of those points applies, at a smaller scale, to a Wi-Fi radio or a graphics card earning tokens at home. The difference is that Filecoin's own pages say so.

Pre-sales, Fake Devices and Unofficial Sellers

Hardware adds a risk that holding a token does not: the device itself can be a scam. Three patterns are worth knowing before you pay:

• Pre-sales. A device sold before it exists, with delivery promised months away, leaves you exposed to the seller as well as to the network.
• Promised returns. A seller who quotes a fixed monthly income from a device is quoting a number that depends on rules and prices the seller does not control.
• Unofficial routes. A device bought from a seller the network does not point to may not be accepted by the network at all.
• Requests for keys. No legitimate device setup needs your wallet's private key or seed phrase, and a seller who asks for either is a security threat, not a supplier.

The defence is to start from the network's own documentation. Helium's documentation, for example, points buyers of Mobile Wi-Fi Hotspots to helium.com for purchasing information (read 3 November 2026). Our crypto scam protection guide covers the wider warning signs, from impersonated sellers to payment requests that cannot be reversed.

What the device is worth if you stop

A payback calculation assumes you keep the device running until it has paid back. If you stop earlier, because the rules change or the token falls, what you recover depends on what someone else will pay for the device. A device built for one network has few other uses, and its resale value falls with the same news that made you want to sell. Count on recovering little from resale when you size the purchase, and treat anything more as a bonus rather than part of the plan.

Reading a Seller's Payback Chart

A seller's payback chart is a claim about the future made by someone who profits from the sale. That does not make it false, but it does mean it should show its working. A chart worth reading shows the following, each with a date:

• The token price it assumes, and the day that price was read.
• The reward per device it assumes, and the rule version it comes from.
• The number of devices on the network when the reward was measured, and what the chart assumes about growth.
• The running costs it includes, and the unit rate behind the electricity figure.
• The result at lower values, at least at half the token price and half the reward.

The rule version matters more than it looks. On Helium, a chart built on coverage rewards describes a mechanism its documentation says was removed as of 6 July 2026. A chart that cannot say which version of the rules it uses cannot tell you whether those rules still apply.

A missing item is itself information. A chart that shows a single payback date and no inputs is a sales figure, and the honest response is to rebuild it yourself from the network's own documentation and your own costs before deciding anything.

The Device or the Token: Two Exposures Side by Side

Someone interested in a DePIN network can hold its token, run its hardware, or do neither. The table compares the first two on the points this page has covered. It compares structure, not returns, and it states no figures.

Read down the right-hand column and every row adds something to the left. Hardware contains the token's risks and adds its own, which is why the same view of a network can justify holding a little of its token and still argue against buying its hardware.

Reader Rules Before You Buy a Device

The method and the record reduce to a short set of rules. Each can be applied to any device on any network, and each takes minutes rather than days:

• Price the costs in pounds first. Device, power at your own unit rate, connection, and any tokens you must lock or burn.
• Read what the device is rewarded for today. Use the network's current documentation, not the seller's page; Helium's change on 6 July 2026 shows why.
• Read the next issuance change. Model its date if scheduled, or scenarios around its threshold if the timing depends on issuance.
• Test at half the price and half the reward. A payback that fails both tests rests on hope.
• Allow for more contributors. Model changes in competing work and in total issuance separately.
• Buy only through routes the network points to. Treat pre-sales and promised returns as warnings.
• Keep records from day one. Rewards and sales can have tax consequences; our crypto tax guide covers the UK treatment of cryptoassets.

The rules work alongside a decision about size. A device is a concentrated position in one network's token and one network's rules, and how much of your money to put into any single volatile position is a question our risk management guide takes up.

Applying the rules to an illustrative offer

Suppose, for example, a seller offers a device for £400 with a chart showing payback in 12 months. All the figures in this example are illustrative. The rules turn the offer into a short sequence of checks:

• Costs. Measure or estimate the device's draw and price it at your own unit rate, and add any connection, hosting and locked tokens.
• Rules. Find, in the network's own documentation, what the device is rewarded for today, and check that the chart uses the same rules.
• Schedule. Read the next issuance rule and model a scheduled date or several threshold-timing scenarios, as applicable.
• Price. Redo the sum at half the token price the chart assumes, and work out the break-even price for the device's working life.
• Competition. Ask what the chart assumes about the number of devices, and what happens to each device's share if that number doubles.
• Route. Check that the seller is one the network's documentation points to, and that the device exists today.

If the 12-month payback becomes several years after the second and third checks, the offer has not changed; only the assumptions behind it have become visible. That visibility is the purpose of the exercise, and it costs an hour rather than £400.

If after all of that you would rather hold the token than the device, the demand figures in our guide to how DePIN tokens earn and who pays are the check to make first.

Conclusion

A DePIN device pays back only if the tokens it earns, sold at the prices you actually get, cover its cost and its running costs in pounds. Four inputs decide that, and the two that sellers choose, the reward rate and the token price, are the two the record shows falling. Helium halved its issuance on a published schedule from 1 August 2021, and HNT's price was $29.11 on 1 November 2021 and $0.338 on 3 November 2026, according to DefiLlama's price API.

The illustrative cases give payback periods of about 31 months with the original inputs, 58 months with a reward halving after a year, 75 months with a price halving from the start, and 228 months with both. These calculations establish no device working life.

Rules can also change beyond the schedule. Helium moved to Solana in 2023 and removed Proof of Coverage in 2026, Render's proposal to move its token to Solana was created in 2023, and Bittensor rebuilt its emissions in 2025. A device is a bet that the rules it was bought for, or rules at least as good, will still apply when it has paid back. The record so far does not make that a safe bet.

The rules in the section above turn that into a short routine: price the costs, read the current rules, find the next cut, test at half, allow for competition, buy only through official routes, and keep records. A device that still makes sense after those steps is a decision you have made with your eyes open, which is the most any payback calculation can offer.

If you take one thing from this page, make it the order of the checks. Measure the costs you can measure, read the rules as they stand today, and only then look at a seller's projection. A projection read first anchors everything after it; read last, it is just one more claim to test.

The same routine is worth repeating after you buy. Each time a network announces a change to its rules, its chain or its issuance, rerun the payback with the new figures, and decide again whether the device still earns its keep.

Sources

Helium, Filecoin and Bittensor documentation and Render's Burn Mint Equilibrium page were read on 3 November 2026. Render's RNP-006, RNP-013 and RNP-015, its Tier 2 announcement, the HIP index and the additional historical HNT prices were read on 4 November 2026; the other price reads were on 3 November 2026, all with our verification client. Illustrative figures on this page have no source, because they describe no real device.

• Helium Documentation, The Mobile Network — Wi-Fi Hotspots, rewards for data transfer, eligibility and where buyers are pointed. docs.helium.com
• Helium Documentation, Helium Oracle Data — the removal of Proof of Coverage as of 6 July 2026, the requester-pays files and the public Iceberg tables for Mobile data. docs.helium.com
• Helium Documentation, Legacy Blockchain Data and L1 Migration Tool — the migration to Solana on 18 April 2023 and the migration tool. docs.helium.com
• Helium Improvement Proposal 20, HNT Max Supply — the two-year halving schedule from 1 August 2021. github.com
• Filecoin Docs, Return-on-investment — the inputs to a storage provider's return, financing and price volatility. docs.filecoin.io
• Filecoin Docs, FIL collateral, Block rewards and Slashing — the three collateral mechanisms, the 10 TiB threshold and the penalties. docs.filecoin.io
• Render Network Proposal RNP-006, Solana Upgrade and Emission Schedule, created 2 November 2023 — the upgrade terms and the gas subsidy. github.com
• Bittensor Docs, The network and Emission weights — miners, validators and the per-subnet emission split. bittensor.com
• Opentensor, subtensor release v2.0.0 “DTAO”, published 13 February 2025 — the date dTAO shipped. github.com
• DefiLlama, price API — HNT prices at 12:00 UTC on each date in the record table, and FIL and RENDER prices on the dates given. coins.llama.fi
• Helium LoRaWAN, read 3 November 2026 — docs.helium.com.
• Helium HNT token, read 3 November 2026 — docs.helium.com.
• Helium L1 Migration Tool, read 3 November 2026 — docs.helium.com.
• Helium HIP 138, read 3 November 2026 — github.com.
• Helium HIP index, read 4 November 2026 — github.com.
• Filecoin Storage proving, read 3 November 2026 — docs.filecoin.io.
• Filecoin Block rewards, read 3 November 2026 — docs.filecoin.io.
• Filecoin Slashing, read 3 November 2026 — docs.filecoin.io.
• Render Burn Mint Equilibrium, read 3 November 2026 — know.rendernetwork.com.
• Render RNP-015, read 4 November 2026 — github.com.
• Render Tier 2 VRAM announcement, read 4 November 2026 — know.rendernetwork.com.
• Bittensor Emissions, read 3 November 2026 — bittensor.com.
• Bittensor Emission weights, read 3 November 2026 — bittensor.com.
• DefiLlama current token prices, read 3 November 2026 — coins.llama.fi.
• DefiLlama historical HNT and FIL prices, read 3 November 2026 — coins.llama.fi.
• DefiLlama historical HNT and RENDER prices, read 3 November 2026 — coins.llama.fi.
• DefiLlama HNT price, 1 August 2021, read 4 November 2026 — coins.llama.fi.
• DefiLlama HNT price, 1 August 2023, read 4 November 2026 — coins.llama.fi.
• DefiLlama HNT price, 1 August 2025, read 4 November 2026 — coins.llama.fi.

Frequently Asked Questions

Can I get my hardware cost back?

Possibly, and possibly not; no one can tell you in advance. Whether you recover the cost depends on the tokens the device earns, the price you sell them at and your running costs, and the network can change its reward rules after you buy. Helium's halvings and its removal of Proof of Coverage, which its documentation dates to 6 July 2026, are examples. Work out the payback under lower prices and lower rewards before you buy, and treat any single payback date as a guess.

How do I work out the payback period of a DePIN device?

For fixed monthly inputs, divide the upfront device and installation cost by monthly rewards sold in pounds after subtracting monthly running costs; the result is arithmetic on assumed inputs, not a forecast. If rewards change partway through, add each month's net proceeds until they cover the upfront cost. Then repeat the sum at half the token price, at half the reward rate after the network's next scheduled cut, and with both. If the answer only works in the first case, the payback rests on assumptions you do not control.

Why did Helium Hotspot rewards fall?

Three things changed between 2021 and 2026. Helium Improvement Proposal 20 halves net HNT issuance every two years from 1 August 2021, so the pool of new HNT shrinks on schedule. HNT's price fell from $29.11 on 1 November 2021 to $0.338 on 3 November 2026, according to DefiLlama's price API. And Helium's documentation says Proof of Coverage was removed as of 6 July 2026, with rewards now described for data transfer. Per-Hotspot earnings history could not be read from Helium's own data for this page.

What happens to my device if the network changes its rules?

The device keeps working only on what the new rules reward. When Helium completed its move to Solana on 18 April 2023, wallets had to be migrated, and its documentation still hosts a migration tool. When it removed Proof of Coverage as of 6 July 2026, devices earned under its data-transfer rules instead. A device bought for one version of a network's rules can earn less, or nothing, under the next.

Do I have to lock up tokens to run DePIN hardware?

On some networks, yes. Filecoin's documentation says storage providers commit FIL as initial pledge collateral with each sector, that block rewards vest as further collateral, and that fault fees apply while a sector is offline, with exceptions for providers with a history of acting honestly, such as no penalty in the current proving period after a missed proof (read 3 November 2026). Locked collateral is exposed to the token's price for as long as it stays locked.

How do I avoid fake DePIN hardware and pre-sale scams?

Buy only through routes the network's own documentation points to, and treat a device sold before it exists, or sold with a promised return, as a warning sign. Helium's documentation, for example, points buyers of Mobile Wi-Fi Hotspots to helium.com (read 3 November 2026). Our crypto scam protection guide covers the wider warning signs.

Is running a Filecoin storage provider a home project?

Filecoin's own guide suggests not. Its return-on-investment page says the hardware and FIL collateral are significant and will likely require financing from investors, venture capitalists or banks, and its block-rewards page says a provider needs at least 10 TiB of storage power to be eligible for block rewards (read 3 November 2026).

Are tokens earned by DePIN hardware taxable?

They can be, and this page does not set out the UK treatment; our crypto tax guide covers how cryptoassets are taxed in the UK. Keep a record of every reward from the first day the device runs, with its date and its pounds value on that date, and of every sale.

Do Render node operators earn anything when there are no jobs?

Render's proposal RNP-015 sets out availability rewards, which it says compensate nodes for uptime and help offset some earnings volatility through a stipend, because operators carry costs such as electricity and maintenance (read 4 November 2026). Job rewards are allocated per epoch from the log of work each node completed, so a node with no jobs earns only what the availability rules provide.

Can a Bittensor miner lose its place on a subnet?

Yes. Bittensor's documentation says a subnet holds at most a set number of neurons, 256 by default, that registering on a full subnet evicts the lowest-ranked neuron that is not immune, and that a new neuron is protected only for an immunity period before it competes like everyone else (read 3 November 2026). Registration is burn-based, so a place costs TAO and can be lost.

When should I rerun a payback calculation?

Whenever one of its inputs changes: a cut in issuance on the network's schedule, a change to what devices are rewarded for, a move to another chain, a large move in the token's price, or a change to your own electricity tariff. Helium's record shows the first four of these happening between 2021 and 2026. A payback figure is only as current as its oldest input.

Financial Disclaimer

This content is not financial advice. All information provided is for educational purposes only. Cryptocurrency investments carry significant investment risk, and past performance does not guarantee future results. Always do your own research and consult a qualified financial adviser before making investment decisions.