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85.6(L) x 53.98(H) x 0.8(T)mm (Credit Card Size)


Metal dome button

Battery & Power

Method: Contact charging via a charger

Full Charge: 2 hours to full charge

Battery Life: 2 weeks (~2 transactions per day), 3 months (standby)

We recommend you fully charge the device once per month.

Battery Material: Lithium Ion Rechargeable Battery

Volt: 3V

Capacity 15 mAh


Bitcoin Speficification Supported

Bitcoin algorithm: Support transaction signing algorithm ECDSA with specified elliptic curve secp256k1

BIP-32 : BIP-32 HD Wallets

BIP-44 : BIP-44 Support multiple coin type and accounts. Each account includes up to 232 external and internal Bitcoin transaction addresses

Seed Generation

Generate seed directly from the CoolWallet S (recommended) or via the CoolBitX Crypto App.

OTP Algorithm