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OneKey
Open-source hardware wallets supporting 100+ chains and 30,000+ coins and tokens
4.1/ 5
Our score
Very good
Price from
$79
Secure element
Yes
Firmware
Fully open source
Connectivity
USB-CBluetooth
Supported assets
30,000
Bitcoin-only
No
What is OneKey?
OneKey makes hardware wallets and self-custody software for crypto assets across more than 100 chains and 30,000 coins and tokens. Its Classic 1S range includes a battery-powered model, a battery-free Pure model and a Bitcoin-only edition. The company says its firmware and apps are open source, with SlowMist audits and reproducible builds.
Company and funding
OneKey was founded in 2019 and is headquartered in Pok Fu Lam, Hong Kong. Yishi Wang is the founder and CEO. The company completed a Series B round in April 2026 at a $150 million valuation, led by YZi Labs. Other backers named on the company website include Coinbase Ventures, Dragonfly Capital and Ribbit Capital.
How the wallets work
The devices keep signing keys in self-custody while the OneKey app handles portfolio access, DeFi, NFTs and dApp connections. The browser extension connects the hardware wallet to decentralized applications and browser wallets. Classic 1S has an EAL6+ secure element, Bluetooth, USB-C and an OLED display. Onboarding can take place offline. Clear Signing and Sign Guard are designed to show transaction details and flag signing risks before approval.
Classic 1S Pure has no battery, so it avoids charging and battery degradation. The Bitcoin Edition is limited to Bitcoin and includes Clear Signing Preview. The wider software platform supports networks including Bitcoin, Ethereum, Solana and Aptos.
Prices and access
OneKey Classic 1S costs $99. Classic 1S Pure and the Classic 1S Pure Bitcoin Edition each cost $79. The OneKey KeyTag add-on costs $59, while wallet onboarding costs $99. Global or international shipping is free on orders over $99.
Track record and risks
OneKey lists SlowMist audits for the Classic 1S series. In October 2026, Classic, Pro, Touch, Mini and Classic 1S firmware passed all 10 reproducibility tests in an independent review. In July 2026, OneKey ended CryptoBilis's authorized-reseller status after reports of unauthorized hardware sold through that reseller. Buyers of OneKey devices purchased there from March 1, 2026 through October 12, 2026 can apply for a free replacement by December 31, 2026.
Buying through an unauthorized reseller creates supply-chain risk, even when the device itself has security hardware and open-source firmware. Physical possession remains important for recovery, and losing the device and its recovery material can prevent access to funds.
Founders
Yishi WangFounder and CEO
Best for:Long-term multi-chain self-custodyOpen-source firmware usersBitcoin-only cold storageDeFi and dApp connections
Pros and cons
Pros
- EAL6+ secure element on Classic 1S models
- Firmware and apps are open source with reproducible builds
- Supports 100+ chains and 30,000+ coins and tokens
- Classic 1S Pure costs $79 and has no battery to degrade
- Clear Signing and Sign Guard add transaction review controls
Cons
- Unauthorized hardware was reported through the former CryptoBilis reseller in July 2026
- Self-custody leaves recovery material and device security with the owner
- The Bitcoin Edition supports Bitcoin only
- Classic 1S Pure requires a cable because it has no battery
- KeyTag and wallet onboarding add extra costs
Our review
4.1/5
Very good
OneKey combines open-source, auditable hardware with wide asset support, but its reseller incident and product range complicate purchase decisions.
OneKey sells hardware wallets for offline key storage and pairs them with a self-custody app and browser extension. Its strongest documented point is transparency: the firmware and software are open source, reproducible builds are available, and the firmware has been audited by SlowMist. Recent reproducibility testing found that OneKey Classic, Pro, Touch, Mini and Classic 1S passed all 10 tests.
The Classic 1S uses an EAL6+ secure element, an OLED display, Bluetooth and USB-C. It supports more than 100 chains and 30,000 coins and tokens, including Bitcoin, Ethereum, USDT, Solana and XRP. The Classic 1S Pure removes the battery, while the Bitcoin Edition is limited to Bitcoin. Clear signing and Sign Guard add transaction-review controls.
Classic 1S costs $99, while Classic 1S Pure and its Bitcoin Edition cost $79. Battery-free models avoid charging and battery degradation, but they give up battery-powered use.
OneKey was founded in 2019, is based in Hong Kong, and is led by founder and CEO Yishi Wang. YZi Labs led its Series B at a $150 million valuation in April 2026. The CryptoBilis incident is a material supply-chain concern. OneKey ended that reseller relationship in July 2026 after reports of unauthorized hardware and offered eligible buyers free replacements through December 31, 2026.
OneKey suits long-term self-custody holders who want open-source firmware, a secure element and broad chain coverage. Buyers who want a Bitcoin-only device can choose the $79 model.
Specs
| KYC required ⓘ | No · unverified |
|---|---|
| Price from | $79 · unverified |
| Connectivity | USB-C, Bluetooth · unverified |
| Secure element | Yes · unverified |
| Firmware | Fully open source · unverified |
| Display | Screen + buttons · unverified |
| Air-gapped signing | Yes · unverified |
| Bitcoin-only | No · unverified |
| Supported assets | 30,000 · unverified |
| Companion app | OneKey app · unverified |
Not disclosed by the provider: Battery, BIP39 passphrase, Multisig support, Touchscreen, Backup options, NFC.
Data from the provider's website and public sources. Fees and availability change; confirm on the official site before you sign up.
Key features
EAL6+ secure element
Classic 1S uses an EAL6+ certified secure chip to protect signing keys.
Open-source firmware
Firmware and apps use open-source code, reproducible builds and third-party audits by SlowMist.
Multi-chain support
The platform supports more than 100 chains and 30,000 coins and tokens, including Bitcoin, Ethereum, Solana and Aptos.
Offline onboarding
Classic 1S models support offline onboarding and transaction review through Clear Signing.
Bluetooth and USB-C
Classic 1S connects over Bluetooth or USB-C and has an OLED display for reviewing transactions.
Battery-free model
Classic 1S Pure has no battery, charging requirement or battery degradation.
dApp connections
The OneKey app and browser extension connect the hardware wallet to WalletConnect, decentralized applications and browser wallets.
Inside OneKey
OneKey Classic 1S
The Classic 1S is a hardware wallet with an EAL6+ secure chip, OLED display, Bluetooth and USB-C. It supports more than 100 chains and 30,000 coins and tokens, with offline onboarding, clear signing and Sign Guard.
OneKey Classic 1S Pure
The Classic 1S Pure is a battery-free hardware wallet with an EAL6+ secure chip. It uses offline onboarding, clear signing and Sign Guard, and supports open-source reproducible firmware and apps audited by SlowMist.
OneKey Classic 1S Pure Bitcoin Edition
This battery-free model is designed exclusively for Bitcoin. It includes a clear signing preview and costs $79.
OneKey app
The OneKey app is a self-custody wallet for crypto assets, DeFi, NFTs and dApp connections. It also includes access to OneKey Earn products such as the Spark Savings integration for USDT.
OneKey browser extension
The browser extension connects OneKey hardware wallets to decentralized applications and browser wallets through supported dApp connection flows.
OneKey screenshots
What users say about OneKey
Users mainly praise OneKey for its ease of use, smooth swaps, and hardware-wallet security. Complaints focus on Lightning outages, missing integrations, compatibility limitations, and some concerns about software reliability and transparency.
Top goods
In their own words
“My real experience trading on OneKey App (swaps + a bit of perps) Hey guys, Been using the OneKey App for a few months now and figured I’d share how trading actually feels day-to-day. What works well for me: 1. Swaps are surprisingly smooth.”
“Onekey is the best hardware wallet I have ever used. Onekey is so easy to use.”
“My simple crypto security rule: slow down before you sign I’ve been using OneKey as my hardware wallet, and what I like most is how simple it is to use. The interface is clean, and the transaction details are easy to check before signing.”
“Authentication error with Lightning Anyone have their lightning balance suddenly not work. Like mine is just not loading and I can’t move my money. I’m getting an authentication error if I click on Lightning specifically. Support hasn’t responded to me today about this and I need my coin badly.”
“doesn't support ledger legacy derivation paths for ethereum so was a completely pointless purchase for me”
“I’ve run into random sync and connection issues too. A lot of the time it seems like the app struggles when firmware and app versions are slightly out of step. Not saying that’s your case, just what I noticed.”
Scam warning: A fake OneKey security-update email directed users to reinstall the app from a malicious link.
Scam warning: Impersonation and phishing messages can imitate OneKey support or update notices.
Based on 200 Reddit posts and comments from the last 12 months, checked Oct 18, 2026. These are posts by users on other sites, not reviews submitted on CryptoReview.
User reviews
No user reviews yet. Have you used OneKey? Share your experience below.
Funding and investors
1Round
1Investor
-
Series B Apr 2026 Amount undisclosedSource
FAQ
Who founded OneKey?
OneKey was founded by Yishi Wang, who is its CEO. The company was founded in 2019 and is based in Hong Kong.
How much does a OneKey hardware wallet cost?
The OneKey Classic 1S costs $99, while the Classic 1S Pure and Classic 1S Pure Bitcoin Edition cost $79. OneKey KeyTag costs $59, and OneKey Care starts at $19.99 or $24.99 depending on the listed plan.
Is OneKey safe?
OneKey uses an EAL6+ secure element in the Classic 1S, and its firmware has been audited by SlowMist with reproducible builds. In July 2026, OneKey ended CryptoBilis's authorized-reseller status after reports of unauthorized hardware and offered eligible buyers free replacements through December 31, 2026.
How many coins and chains does OneKey support?
OneKey supports more than 100 chains and more than 30,000 coins and tokens. Listed examples include Bitcoin, Ethereum, USDT, Solana and XRP.
Does OneKey have a token?
OneKey does not issue a coin. Its products include hardware wallets, the OneKey app and a browser extension for self-custody and dApp connections.
Does OneKey support passphrases and multisig?
The Classic 1S also supports clear signing and Sign Guard for transaction review.
Latest from OneKey on X
Built for the future. Quantum-ready.
Built with quantum-resistant cryptography, OneKey Pro 2's architecture is designed for post-quantum standards, with room for advanced security capabilities.
Today, firmware signature checks at startup use quantum-resistant cryptography.
Quantum upgrades for on-chain assets are still underway. OneKey will follow fast.
Built with quantum-resistant cryptography, OneKey Pro 2's architecture is designed for post-quantum standards, with room for advanced security capabilities.
Today, firmware signature checks at startup use quantum-resistant cryptography.
Quantum upgrades for on-chain assets are still underway. OneKey will follow fast.
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Complete swap tasks in OneKey App and unwrap candy for a chance to win up to 99 USDC or a OneKey hardware wallet worth up to $299 🍬
3 days left. Join now 👇
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Binance has confirmed: user funds are safe.
Binance says all losses from the security incident late on October 29 (UTC) will be covered by its SAFU fund and company funds. CZ also posted: "User funds are SAFU!" Based on public on-chain data and official statements, we've put together what happened 👇
🔍 What happened
The attacker started preparing two days earlier. At 20:20 UTC, a single transaction sent 50 EIP-7702 authorizations to a Binance hot wallet. One took effect, and within minutes the wallet's assets were swept out in batches. Binance estimates the total impact at around $6.3B.
📌 Response and latest update
Tether, Circle, Ripple, Paxos, Arbitrum and others froze related assets, and about $3B has been frozen on-chain so far. Binance's initial investigation suggests a compromised engineer's laptop may have let the attacker submit unauthorized withdrawal transactions, with no evidence of a wallet private key leak. Binance later said it found additional points of breach, and that outflows stopped once withdrawals were paused. Deposits are operating normally. Withdrawals have not resumed yet; please follow Binance's official announcements for timing.
🔐 Two things worth remembering
1. Assets can be moved even when private keys are safe. This incident points to the signing and approval process, not the private keys themselves, and not a smart contract bug. Always verify transaction details on a trusted device, not just on a web page.
2. EIP-7702 authorizations are powerful. EIP-7702 is a legitimate feature that enables batched transactions and gas sponsorship. But once you sign an authorization, your wallet's operations are handed to a program until the authorization is revoked.
Over the next few days:
1. Follow updates only through Binance's official channels
2. Don't click any "compensation" or "refund" links
3. Check what you sign, and reject any 7702 authorization request you don't understand
Information as of 08:47 UTC on October 30. We'll keep following this.
Binance says all losses from the security incident late on October 29 (UTC) will be covered by its SAFU fund and company funds. CZ also posted: "User funds are SAFU!" Based on public on-chain data and official statements, we've put together what happened 👇
🔍 What happened
The attacker started preparing two days earlier. At 20:20 UTC, a single transaction sent 50 EIP-7702 authorizations to a Binance hot wallet. One took effect, and within minutes the wallet's assets were swept out in batches. Binance estimates the total impact at around $6.3B.
📌 Response and latest update
Tether, Circle, Ripple, Paxos, Arbitrum and others froze related assets, and about $3B has been frozen on-chain so far. Binance's initial investigation suggests a compromised engineer's laptop may have let the attacker submit unauthorized withdrawal transactions, with no evidence of a wallet private key leak. Binance later said it found additional points of breach, and that outflows stopped once withdrawals were paused. Deposits are operating normally. Withdrawals have not resumed yet; please follow Binance's official announcements for timing.
🔐 Two things worth remembering
1. Assets can be moved even when private keys are safe. This incident points to the signing and approval process, not the private keys themselves, and not a smart contract bug. Always verify transaction details on a trusted device, not just on a web page.
2. EIP-7702 authorizations are powerful. EIP-7702 is a legitimate feature that enables batched transactions and gas sponsorship. But once you sign an authorization, your wallet's operations are handed to a program until the authorization is revoked.
Over the next few days:
1. Follow updates only through Binance's official channels
2. Don't click any "compensation" or "refund" links
3. Check what you sign, and reject any 7702 authorization request you don't understand
Information as of 08:47 UTC on October 30. We'll keep following this.
Putting your stablecoins to work shouldn't mean chasing higher yields at any cost.
Spark Savings draws on years of experience in capital allocation, with governance-approved opportunities, defined risk controls and a multi-layer loss-absorption framework designed to absorb potential losses before they reach users.
Access @sparkfinance Savings directly in OneKey, with clear transaction approvals and wallet activity tracking.
Earn additional USDT and USDC incentives through OneKey.
USDT: https://t.co/ffiKnuL6wk
USDC: https://t.co/jMuLgbDTSW
Spark Savings draws on years of experience in capital allocation, with governance-approved opportunities, defined risk controls and a multi-layer loss-absorption framework designed to absorb potential losses before they reach users.
Access @sparkfinance Savings directly in OneKey, with clear transaction approvals and wallet activity tracking.
Earn additional USDT and USDC incentives through OneKey.
USDT: https://t.co/ffiKnuL6wk
USDC: https://t.co/jMuLgbDTSW
Recent public posts from @OneKeyHQ, shown as published. Not reviewed or endorsed by CryptoReview.
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