Description
CoolWallet Go is an NFC-powered crypto hardware wallet from CoolBitX, designed as a battery-free cold storage solution in a slim credit card form factor. Private keys are generated and stored inside a CC EAL6+ certified secure element and never leave the card.
Security
- CC EAL6+ Certified Secure Element — Military-grade certified chip for private key generation and offline storage.
- Battery-Free NFC Design — Powered entirely by your phone's NFC field when tapped, eliminating battery failure and charging concerns.
- Self-Custody — Private keys never leave the secure element. You retain full control of your assets.
How It Works
- Set Up — Download the CoolWallet App on iOS or Android and pair your card via NFC.
- Tap to Sign — Tap the card to your NFC-enabled phone to authorize transactions securely.
- Manage Assets — Use the CoolWallet App to buy, sell, swap, and manage supported cryptocurrencies.
Supported Assets & Features
CoolWallet Go works with the CoolWallet App ecosystem, supporting multiple blockchains and thousands of tokens. The app includes built-in staking, swap, and Web3 browser functionality via WalletConnect.
Key Features
- Credit Card Size — Fits in any physical wallet alongside bank cards.
- No Battery Required — Always ready to use, never needs charging.
- Tap-to-Sign — Simple, intuitive NFC interaction for transaction signing.
- Portable & Durable — Designed for everyday carry.
Ideal For
Users looking for an affordable, entry-level NFC card wallet with bank-grade security — perfect for those new to self-custody who want the simplicity of tap-to-sign without managing batteries or cables.
Highlights
Pros
- Priced at $69.99 for a 2-card set, significantly more affordable than most traditional hardware wallets.
- Seedless backup system with Primary and Backup card pair eliminates the need to write down and safeguard a recovery phrase.
- Ultra-slim credit card form factor at just 0.8mm thick and 3 grams, easily fitting in a wallet or pocket.
- CC EAL6+ certified secure element generates and stores private keys offline, meeting bank-grade security standards.
- Optional lifetime warranty plan ($39) covers replacements, a rare offering in the cold wallet space.
- Battery-free NFC design means the card never needs charging and is always ready to sign transactions.
Cons
- Locked into the CoolWallet App ecosystem; cannot be used with desktop wallet software such as Sparrow or Electrum.
- Relies solely on NFC for connectivity—no USB, Bluetooth, or wireless charging alternative is available.
- No built-in display means transaction details can only be verified on the smartphone screen, not on the card itself.
- No physical buttons or on-device controls for transaction confirmation—all signing authority flows through the companion app.
- Requires a smartphone with NFC functionality; cannot sign transactions without a compatible mobile device.