Crypto hardware wallet comparison Keystone 3 Pro vs CoolWallet Pro
Our impressions
Keystone 3 Pro
CoolWallet Pro
- Supports 3 concurrent seed phrases
- Convenient user experience with the huge touchscreen
- Completely autonomous device with long lasting battery lifetime (should be at least 100+ hours in sleep mode when using the device a couple times per day, 18+ months when turned off)
- Easy process for online Device Verification
- The airgapped QR code paradigm requires a camera on the paired device for certain interactions
- We love their dedication to open source “EVERY SINGLE LINE” of code they write, including their hardware designs. As long as they do not deliver on their promise, it sadly still is a closed source product.
The Keystone 3 Pro is a device that we can see in a “broad adoption of everyday Crypto financial transactions” scenario. It is a fully air-gapped, autonomous device that has great battery life with an easy to use interface on a convenient 4-inch touchscreen. We would add it to our everyday carry in an instant, in a world where QR code based Crypto payments are available at every shop and venue.
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
Keystone 3 Pro
CoolWallet Pro
2023
2021
Supports multiple coins
5000+ Coins Supported (Bitcoin & EVM chains)
Bitcoin-only Firmware is supposedly in the works, with an estimated release date some time before the next Bitcoin halving
Source: Comment on reddit.com
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
- Planned
The Keystone team is working on also open sourcing “EVERY SINGLE LINE of code we’ve written”, including their hardware design, with an announced release date in November 2023. The announcement is worded in a way that it leaves some room of what we really can expect to be released and if they can meet their own release date.
Source: Official blog post concerning Open Source
As the focus of the Keystone 3 series is on 3rd party app compatibility the previous companion software will be faded out in the future.
Source: second hand user comment on reddit.com
- Firmware
- Companion software
- BIP-39 (Mnemonic phrase)
- SLIP-39 (Shamir backup)
- Passphrase
- Multiple seedphrases on one device
- 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
- Factory reset with wrong PIN
- On device passphrase entry
- On device recovery
- Fingerprint sensor
- Air-gapped QR code
Triple Secure Element Chips
USB & MicroSD Card Firmware Upgrading
PCI Anti-tamper Feature
- Secure element
CC EAL 6+
- Windows
- macOS
- Linux
- Android
- iOS
- ChromeOS
- Android
- iOS
Technical specifications
Keystone 3 Pro
CoolWallet Pro
62.44 mm x 103.9 mm x 12.08 mm
2.46 in x 4.09 in x 0.48 in
85.6 mm x 53.98 mm x 0.8 mm
3.37 in x 2.13 in x 0.03 in
103 g
3.63 oz
6 g
0.21 oz
- Color
- Touchscreen
4-Inch LCD TFT Touchscreen
480 x 800 pixels
- Monochrome
E-paper display
- USB-C (limited to charging and firmware updates)
- Bluetooth
- Bluetooth
- microSD card
n/a
PCI security standards
CE and RoHS
NCC- CCAF22LP0650T3 （model: CWS)
Black plastics (PC + ABS)