OneKey Lite Review: NFC Seed Backup That Fits in Your Wallet

OneKey Classic 1S retail packaging — sealed with EAL 6+ secure element branding.

I've been using OneKey hardware wallets for about six months now, and when I saw they released a seed backup card, I was skeptical. Another backup solution? But after using the OneKey Lite for the past few weeks, I actually think it fills a gap that metal plates don't.

What OneKey Lite Actually Is

OneKey Lite is an NFC card—think credit card thickness—that stores your seed phrase encrypted with AES-256. You tap it against your phone (iOS or Android), enter a PIN, and it reads or writes your backup. No battery, no charging, no USB ports. Just a chip embedded in plastic.

The card itself uses an EAL6+ certified secure element, the same military-grade chip found in the OneKey Classic 1S ($99, supports 100+ chains and 30,000+ tokens). The difference is that the Lite is purely a backup device—it doesn't sign transactions. You use it to restore a wallet if your hardware wallet dies or gets lost.

Here's the workflow:

1. Initialize the Lite with a 6-digit PIN via the OneKey app
2. Write your seed phrase to the card (it encrypts it automatically)
3. Store the card somewhere safe—wallet, safe deposit box, fireproof safe

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