GetColdWallet 
The Keystone 3 Pro is an innovative and highly secure hardware wallet designed to offer maximum protection for cryptocurrency assets. With a focus on security through its air-gapped design and triple secure element chips, the wallet eliminates connectivity risks. Its 4-inch touchscreen interface, support for 30+ software wallets, and compatibility with over 5,500 cryptocurrencies make it a versatile choice for managing both mainstream and altcoins. Priced at $149, it is a premium wallet for anyone seeking top-tier security combined with ease of use.
Key Features of Keystone 3 Pro
-
Superior Security
- Air-Gapped Mode: Operates entirely offline to safeguard private keys and seed phrases from malware and cyberattacks.
- Three Secure Element Chips: Protects private keys with payment card industry-level safeguards.
-
Wide Cryptocurrency Support
- Supports 5,500+ cryptocurrencies, including Bitcoin (BTC), Ethereum (ETH), Ripple (XRP), Litecoin (LTC), Solana (SOL), Cardano (ADA), and various ERC-20 tokens.
- Check the full list of supported cryptocurrencies here.
-
Third-Party Software Integration
- Compatible with 30+ software wallets, such as MetaMask, Solflare, BlueWallet, and OKX Wallet.
- Keystone is the only hardware wallet compatible with both the MetaMask extension and MetaMask mobile app.
-
User-Friendly Design
- Features a 4-inch color LCD touchscreen for intuitive navigation.
- Includes haptic feedback and a well-structured user interface for smooth operation.
-
Additional Security Layers
- Fingerprint Sensor: Biometric authentication ensures only the owner can access the wallet.
- Shamir Backup: Enables splitting your recovery seed into multiple parts for added redundancy and security.
Specifications
| Feature | Details |
|---|---|
| Display | 4-inch LCD touchscreen (480 x 800) |
| Security Chips | 3 Secure Element Chips (EAL 5+) |
| Connectivity | Air-gapped (QR codes), USB-C |
| Power | 1000 mAh rechargeable Li-ion battery |
| Weight | 103g |
| Dimensions | 62.44 × 103.9 × 12.08 mm |
| Supported OS | Windows, MacOS, Linux, Android, iOS, Chrome OS |
What’s in the Box?
- Keystone 3 Pro Hardware Wallet
- USB-C Cable for charging and firmware updates
- 6 Recovery Seed Cards for writing down backup phrases
- User Manual
- Adhesive Tape for securing the packaging as discreet storage
Setup Process for Keystone 3 Pro
The setup process for the Keystone 3 Pro is straightforward and mostly completed directly on the device itself:
-
Prepare the Wallet
- Charge the wallet to at least 20% battery.
- Remove the protective film and turn it on by holding the power button.
-
Verify Authenticity
- Visit keyst.one/verify to ensure the wallet and firmware are genuine.
- Follow the instructions to scan the QR code and validate device authenticity.
-
Update Firmware
- Update the firmware via USB or microSD. You can choose between Multi-Coin firmware for multiple cryptocurrencies or Bitcoin-only firmware for enhanced security.
-
Create or Import a Wallet
- Generate a new wallet by selecting either a 12- or 24-word recovery phrase, or restore an existing one.
- Alternatively, set up a Shamir Backup with multiple shares for added redundancy.
After these steps, the Keystone 3 Pro is ready for use.
Operating the Keystone 3 Pro
Using the Keystone 3 Pro is highly intuitive thanks to its well-designed interface, clear menus, and large, responsive touchscreen.
-
Managing Assets:
- Use third-party wallets like MetaMask or Solflare to manage, send, or receive cryptocurrencies.
- Display wallet addresses, set passphrases, or check the recovery seed directly on the device.
-
Air-Gapped Transactions:
- The wallet uses QR codes to transfer data securely without ever connecting to the internet, ensuring maximum protection.
-
Fingerprint or Passphrase Protection:
- Add an extra layer of security by setting up biometric authentication or advanced passphrases.
-
Maintenance:
- Regularly check for firmware updates to stay up-to-date with improved functionality and new asset support.
Advantages
-
Highly Secure and Air-Gapped:
- Never connects to the internet, protecting against remote attacks.
-
Wide Compatibility:
- Supports 30+ software wallets and over 5,500 cryptocurrencies.
-
User-Friendly Touchscreen:
- The 4-inch color display makes navigation straightforward and efficient.
-
Shamir Backup Support:
- Protect your recovery seed by splitting it into secure shares.
-
Built-In Fingerprint Scanner:
- Biometric security ensures only authorized access to the wallet.
-
Customizable Firmware:
- Offers both Multi-Coin and Bitcoin-only firmware for added flexibility and security.
Disadvantages
-
No Native App
- Unlike other wallets, the Keystone 3 Pro relies exclusively on third-party software wallets.
-
Larger Size and Weight
- At 103 grams, it is bulkier compared to other hardware wallets like the Trezor Model One or Ledger Nano S Plus.
-
Premium Price
- Priced at $149, it is more expensive than some entry-level hardware wallets.
Supported Cryptocurrencies and Software Wallets
The Keystone 3 Pro supports over 5,500 coins, including major and altcoins like:
- Bitcoin (BTC)
- Ethereum (ETH)
- Ripple (XRP)
- Litecoin (LTC)
- Dogecoin (DOGE)
- Cardano (ADA)
- Solana (SOL)
In addition, it integrates seamlessly with popular wallets such as:
- MetaMask (browser extension and mobile app)
- Solflare
- OKX Wallet
- BlueWallet
- Tonkeeper
A complete list of supported coins is available on the Keystone website.
Security Features of Keystone 3 Pro
-
Air-Gapped Design
- Keystone 3 Pro’s air-gapped mode ensures it never touches the internet. QR codes are used for communication instead of USB or Bluetooth.
-
Secure Element Chips
- With three built-in security chips, the Keystone 3 Pro protects private keys from physical tampering and advanced hacking attempts.
-
Anti-Blind Signing
- Prevent accidental signing of malicious transactions by verifying all details on the device screen.
-
Open-Source Firmware
- The firmware’s public code enhances transparency and trust.
-
Shamir Backup Support
- Securely split recovery seeds into multiple parts and store them in different locations.
-
Biometric Authentication
- The integrated fingerprint sensor prevents unauthorized access, even if the wallet is stolen.
Ideal for Advanced Security and Versatility
The Keystone 3 Pro is a robust and flexible hardware wallet for users who prioritize offline security and need compatibility with multiple wallets and cryptocurrencies. Its air-gapped design and advanced backup options make it a great choice for securing significant crypto holdings, though its lack of a native app might not appeal to beginners.
Final Verdict
The Keystone 3 Pro offers top-tier security, wide compatibility, and a highly responsive touchscreen interface, making it one of the most secure and user-friendly hardware wallets available. W
