Disclosure: OneKey sent us a Classic 1S to review. We weren't paid to write this, the verdict is entirely our own, and the OneKey links in this post are our referral links. We've actually been using the unit — storing SOL on it and staking through the app — so everything below is hands-on, not a spec-sheet rewrite.
Most "best hardware wallet" lists are written by people who never plugged the device in. This isn't that. We've had the OneKey Classic 1S in daily use as our Solana cold-storage setup, and the short version is: we're genuinely pleased with it. Here's the long version.
What the OneKey Classic 1S is
It's a credit-card-thin cold wallet that keeps your private keys on a dedicated chip that never touches the internet. The headline specs:
| Spec | OneKey Classic 1S |
|---|
| Price | Check current OneKey store; promotions vary |
| Secure element | EAL6+ certified chip |
| Screen | 1.54" monochrome OLED, button navigation |
| Connectivity | USB-C and Bluetooth |
| Battery | Built-in 110 mAh |
| Coverage | Multi-chain with Solana support; exact asset count changes with firmware/app support |
| Open source | Firmware and apps published on GitHub |
| App | macOS, Windows, Linux, iOS, Android, Chrome |
The EAL6+ secure element is the part worth dwelling on: it's the same security-certification tier as Ledger's chips, and OneKey pairs it with fully open-source firmware — a combination that's surprisingly rare. With most wallets you pick one or the other: Ledger's secure element with closed firmware, or Trezor's open firmware. OneKey gives you both.
Setup: genuinely easy
Setup was the smoothest part. The on-device prompts and the app walked through each step clearly — generate the recovery phrase, confirm it, set a PIN — with no guesswork. Two things stood out as done right:
- Firmware update first. Before doing anything else, the app prompted us to update the firmware, which is exactly the order you want (you don't want to initialise a wallet on stale firmware).
- Genuine-device verification. On first activation the device runs a firmware attestation check — it verifies the unit is running authentic, unmodified OneKey firmware and hasn't been tampered with or pre-initialised. For a hardware wallet that's the single most important first-boot check, and OneKey makes it automatic rather than a hidden menu item.
From unboxing to a funded, verified wallet took only a few minutes, and at no point did we have to go hunting for instructions.
Using it for Solana
Our actual use case is storing SOL and staking it. The OneKey app has a DeFi/Earn section where you can stake SOL directly — keys stay on the device, you approve the transaction on the hardware, and you start earning. It's the thing a lot of "Solana-compatible" hardware wallets technically support but make awkward; here it's a few taps. Solana sends, receives, and staking all worked without dropping into a third-party interface.
If you also hold beyond Solana, the 100+ chain support means the same device covers Bitcoin, Ethereum, and the long tail without juggling apps.
USB-C and Bluetooth
You can use it wired over USB-C at your desk, or over Bluetooth from your phone when you're away from a cable. Both worked fine for us.
Worth a note for the security-minded: some people prefer a cold wallet with no radio at all, and Bluetooth is occasionally raised as a theoretical attack surface. In practice the keys never leave the secure element and every transaction is confirmed physically on the device, so Bluetooth is a transport, not a key-exposure path — and if it bothers you, you can simply use USB-C only. We like having the option.
OneKey Classic 1S is still supported and Solana remains in OneKey's current chain list. The device continues to use an EAL6+ secure element, open-source firmware, USB-C and Bluetooth, and current firmware releases remain active in 2026. We removed static "$99 / 30,000+ coins" positioning from the core comparison because retail pricing and supported-token counts change faster than the device's security model.
