Crypto hardware wallet comparison BitBox02 Bitcoin-only edition vs CoolWallet Pro
Our impressions
BitBox02 Bitcoin-only edition
CoolWallet Pro
Disclaimer: Our impressions are based on a compilation of factors tailored to the average user’s perspective. It is also important to note that whether a feature is a “pro” or “con” can depend on your situation and preferences. What may be an advantage in one scenario could be a challenge in another, and vice versa. Therefore, while reviewing these points, it’s essential to consider your unique requirements and circumstances when making decisions. This list aims to provide an idea of what to anticipate, but it is not the ultimate guide to determining whether something will work for you or not.
Key features
BitBox02 Bitcoin-only edition
CoolWallet Pro
2019
2021
Supports only Bitcoin
For multi-coin support see BitBox02 multi-coin edition
It is not possible to convert a BitBox02 Bitcoin-only edition into a BitBox02 Multi edition or vice-versa. The BitBox02 bootloader prevents firmware downgrades and installing firmware for a different edition of the BitBox02 (Multi or Bitcoin-only) as otherwise that would be a security attack vector.
Supports multiple coins
Supports over 30 main chains, including Bitcoin, Ethereum, Binance Smart Chain, Binance Chain, Polygon, Solana, Avalanche C-Chain, Arbitrum, Optimism, Tezos, Cardano, TRON, Aptos, Polkadot, Cosmos, Kusama, Cronos, Crypto.org, Bitcoin Cash, Ethereum Classic, XRP, Flare, Stellar, Litecoin, Horizen, Icon, Stellar, Kinesis Gold, Kinesis Silver, Terra, and Tether (OMNI)
In addition also supports over 12,000 custom tokens on several chains such as Ethereum and Binance Smart Chain
- Firmware
- Companion software
- Firmware
- Companion software
- BIP-39 (Mnemonic phrase)
- Passphrase
- BIP-39 (Mnemonic phrase)
- Proprietary method
Device does support the BIP-39 standard in the companion app. The proprietary CoolBitX mnemonic (seed phrases generated using the “on card” option) is based on BIP-39, but does not use the BIP-39 wordlist. Sample code that demonstrates seed and key generation is available in the CoolBitX Mnemonic Github repository.
- Secure element
- On device PIN entry
Dual chip security architecture
Secure chip: ATECC608B; True random number generator (NIST SP 800-90A/B/C)
Anti-klepto mitigates the nonce covert channel attack
Physical protections
Security audit & bug bounty program
- Secure element
CC EAL 6+
- Windows
- macOS
- Linux
- Android
- Android
- iOS
Technical specifications
BitBox02 Bitcoin-only edition
CoolWallet Pro
54.5 mm x 25.4 mm x 9.6 mm
2.15 in x 1 in x 0.38 in
85.6 mm x 53.98 mm x 0.8 mm
3.37 in x 2.13 in x 0.03 in
12 g
0.42 oz
6 g
0.21 oz
- Monochrome
- OLED
128 x 64 Pixels
- Monochrome
E-paper display
- USB-C
- Bluetooth
- microSD card
ATSAMD51J20A
120 Mhz 32-bit Cortex-M4F
True random number generator
CE and RoHS
NCC- CCAF22LP0650T3 （model: CWS)
Polycarbonate