OneKey review
Updated September 28, 2026 · HodlCue Editorial Team · Facts checked September 26, 2026
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Our verdict
OneKey is a self-custody hardware wallet for anyone who wants their own keys and broad coin coverage at a device price rather than a subscription. It scores 6.3 overall, with the offer carrying the weight and the cost side resting on what you pay for the device.
Key facts
- Best for
- Self-custody holders who want a long coin list and open source hardware at a modest outlay.
- Wallet type
- Hardware↗
- Price
- $79 to $278↗
- Custody
- Self custody↗
- Coins supported
- 30,000↗
- Secure element
- EAL 6+ secure element↗
- Open source
- Yes↗
- Connectivity
- USB-c, Bluetooth, NFC↗
- Backup options
- Seed↗
- Legal entity
- ONEKEY LIMITED↗
- Headquarters
- Hong Kong↗
- Support channels
- Email, Chat, Help-centre, Community↗
- Features
- Self-custody
- Official website
- onekey.so
Facts checked September 26, 2026, 4 sources
Apps and profiles
- Get the app
- App Store
- Elsewhere
- Xgithub.com
Pros and cons
Pros
- Custody sits with you: self custody keeps the balance and the keys off any operator's books, unlike bynex, whose custody is custodial.
- The signing chip is a EAL 6+ secure element, a stated security rating rather than a marketing line.
- Coverage of 30,000 coins is the strongest part of the offer, and the app lists self-custody among its features.
- The firmware is open source, so the code that touches your keys can be read by anyone rather than trusted on assurance.
- Entry pricing lines up with Trezor at $79, so moving to hardware need not cost more than the comparison.
Cons
- Support runs on email, chat and help centre only, so written channels carry the whole help load.
- On price, OneKey ranks 103 of 120 brands, so the device is not the cheapest option on the page.
- The range $79 to $278 is wide, so the higher specification device costs far more than the entry model.
- Backup is a seed phrase, which puts the whole recovery path on one written secret.
Who it suits
- Long term holders who want their keys offline and their coin list long.
- Buyers who read code, since the firmware and app are open source.
- Shoppers comparing hardware who want the entry price to sit at $79.
Who should look elsewhere
- Bit2Me, whose wallet is mobile, if a phone suits you better than a device you own.
- bynex, where custody is custodial, if you would rather an operator held the keys.
- Trezor, if you would rather pay one fixed $79 than choose a model across $79 to $278.
Safety and regulation
The keys stay with you, and that is the whole safety story here. OneKey is built around self custody: no operator is deposited with the balance, and the recovery phrase remains with the holder. The component doing the signing work is a EAL 6+ secure element, which matters because the realistic attacks on a small device are physical ones, and a chip with a stated rating is the part of the design built to resist them. The firmware and the companion app are open source, so the code that touches keys can be read by outside eyes rather than taken on assurance. Those two facts together, a listed chip rating and readable code, describe an approach that a custodial platform cannot copy, because a provider that holds a balance also holds the keys behind it. The trade that comes with self custody is straightforward: recovery sits with the holder as well, so where the phrase is written and how it is looked after matters as much as the device.
Where it sits among rivals
On the two figures a reader checks first, OneKey splits. Coin support is the strength, where it ranks 2 of 108 brands on the number of coins handled, a place near the front of a very wide field. Price is the other side of the ledger, where it ranks 103 of 120 brands. Read together, the two positions describe one decision from opposite ends: broad coverage costs more than the cheapest devices on the list, and a reader holding a wide set of assets is paying a premium for that reach rather than for a service. Neither figure is a verdict on its own. Coverage counts for little if the chains you hold are among the handful every cheap device supports, and a low price counts for less if it arrives with a chip and code nobody can inspect. OneKey lands in the middle distance, priced above entry hardware and below the models built for a different purpose.
Who runs it
Behind the device is ONEKEY LIMITED, headquartered in Hong Kong. That is the first thing worth knowing about a hardware maker, since the product is a physical object with a warranty and an owner rather than an account balance, and knowing the entity gives you somewhere to direct a complaint. Support runs on email, chat and help centre, which is email, chat, a help centre and a community channel. Written routes suit a device whose usual questions are about pairing, firmware and setup, and a help centre holds answers for the problems that repeat. The reason that support layer is worth reading closely is the custody model: with self custody, the maker cannot restore a balance, hand out a replacement key or reverse a transfer, so help is limited to the hardware and the software around it. Expect good answers on how the device behaves, and expect the money to remain your own responsibility.
How OneKey compares
9.1 vs 9.4
9.1 vs 9.0
9.1 vs 8.2
9.1 vs 9.7
9.1 vs 9.5
9.1 vs 9.6
9.1 vs 9.0
9.1 vs 9.0
OneKey vs Trezor9.1 vs 9.0Also a hardware wallet, listed at a single $79 rather than a spread, so readers who want one fixed number to compare can read it directly against $79 to $278.
9.1 vs 8.2
9.1 vs 9.7
9.1 vs 9.5
9.1 vs 9.4
9.1 vs 9.3
9.1 vs 9.2
9.1 vs 9.2
9.1 vs 9.1
9.1 vs 9.0
9.1 vs 8.8
OneKey vs ELLIPAL9.1 vs 8.7
9.1 vs 8.7
9.1 vs 8.6
9.1 vs 8.5
9.1 vs 8.5
9.1 vs 8.5
9.1 vs 8.3
Where OneKey is available
- Available
- Everywhere except Belarus, China, Cuba, Hong Kong, Iran, North Korea, Macao, Russia, Syria, Taiwan
Countries from the brand (Source, checked September 26, 2026)
Frequently asked questions
How much does a OneKey device cost?+
Devices are priced at $79 to $278, a range covering the entry model and the higher specification hardware in the same line. That figure is the cost of entry and there is no tier beyond it for extra accounts or extra services. It matters most for anyone planning to hold a wide set of coins, because coverage on the scale of 30,000 is where the money goes.
Who holds the crypto in a OneKey wallet?+
You do. The design runs on self custody, and the companion app lists self custody among its features. Nothing is deposited with an operator the way a custodial platform holds a balance, which is the main structural difference from an exchange account. The other side of that is that recovery is your job too, since nobody else holds a copy of the phrase.
Is the OneKey firmware open source?+
Yes, the firmware and app are open source, so the code that handles keys can be inspected instead of trusted on assurance. That sits alongside a EAL 6+ secure element in the hardware, which is the component that does the signing. One is code anyone can read, the other is a chip with a stated security rating, and both point the same way for a cautious buyer.
How many coins can a OneKey wallet hold?+
The listed figure is 30,000 coins, which places OneKey near the front of the brands compared on this page. Breadth matters most for anyone running several chains on one device, since coverage at that scale means fewer separate apps to juggle. It is also the reason the price sits where it does, because the device is being asked to do more than a basic holding job.
How is a OneKey wallet backed up?+
Backup runs on seed, which is the recovery phrase written down and kept away from the device. Because the wallet uses self custody, there is no provider to turn to if that phrase is lost, so storage and handling decide how much risk you carry. Connecting options of usb c, bluetooth and nfc affect signing, not the backup itself.
How do I get help from OneKey?+
Support runs on email, chat and help centre, which is email, chat, a help centre and a community channel. Written routes suit hardware, where most questions concern setup, pairing and firmware, and the help centre holds the answers that repeat. With self custody in place, support covers the device and the software, not the balance.
Which company is behind OneKey?+
The maker is ONEKEY LIMITED, headquartered in Hong Kong. Knowing the entity and the country is the practical first step for anyone who wants to know who stands behind a hardware product, particularly since the device is the thing you own rather than an account balance. Pricing, firmware and support all sit with the same company.
How does OneKey compare with Trezor?+
Both are hardware wallets, and the clearest difference between the two is price shape: Trezor is listed at a single $79, while OneKey devices run at $79 to $278, so you pick a model rather than a product. On coverage OneKey lists 30,000 coins, and that figure decides the comparison for anyone holding more than a handful of assets.
Should I buy a OneKey device or use a mobile wallet?+
A OneKey device keeps self custody and costs $79 to $278 up front, with the keys living on hardware you own. Bit2Me runs a mobile wallet instead, so nothing has to be bought or plugged in, though the control of the keys sits with an app on a phone. The trade is hardware you own against a device you carry.
Sources
- help.onekey.so/articles/11461298 checked September 26, 2026
Backs: Headquarters, Legal entity
“ONEKEY LIMITED acts as the data controller for the purposes of this Privacy Policy”
- onekey.so checked September 26, 2026
Backs: Support channels, Wallet type
“Customer Service: Live customer service for online support.”
- onekey.so/download checked September 26, 2026
Backs: Features
“Self-custody. Your keys, your assets.”
- onekey.so/products/onekey-classic-1s-series checked September 26, 2026
Backs: Coins supported, Price
“1 Wallet. 100+ Chains. 30,000+ Coins.”
- onekey.so/products/onekey-pro checked September 26, 2026
Backs: Backup options, Connectivity, Custody, Open source, Secure element
“Create a 24-word Recovery Phrase with an optional Passphrase to derive other wallets when you need extra separation.”
Compiled from 5 source pages, checked September 26, 2026. We did not open an account.
OneKey
Self-custody holders who want a long coin list and open source hardware at a modest outlay.