Updated April 2026 · Independent Analysis
KeystonevsPhantom
Keystone starts at $99/mo; Phantom is free. Phantom is rated higher at 4.6/5 vs Keystone's NaN/5.
Keystonevs Phantom
★ 4.5/5-0.1 vs Phantom
Only in Keystone
- ✦ True air-gapped signing via QR code only (no USB/BT/WiFi/NFC)
- ✦ 4-inch color touchscreen for clear transaction review
- ✦ Fully open-source firmware with reproducible builds
From $99/mo300K+ users · est. 2018
Try Keystone Free →
Phantomvs Keystone
★ 4.6/5+0.1 vs Keystone
Only in Phantom
- ✦ Multi-chain wallet support
- ✦ Built-in swap functionality
- ✦ NFT gallery display
✓ Free plan15M+ users · est. 2021
Try Phantom Free →Ratings Breakdown
Keystone
4.5/5 avg
G2 Score/5
G2 Rating4.5/5
Phantom
4.6/5 avg
G2 Score4.6/5
G2 Rating4.6/5
Quick Stats
Feature Comparison
Keystone uniquely offers True air-gapped signing via QR code only (no USB/BT/WiFi/NFC), 4-inch color touchscreen for clear transaction review, Fully open-source firmware with reproducible builds. Phantom uniquely offers Multi-chain wallet support, Built-in swap functionality, NFT gallery display. Both share 0 features.
Feature
Keystone
Phantom
True air-gapped signing via QR code only (no USB/BT/WiFi/NFC)
✓
✗
4-inch color touchscreen for clear transaction review
✓
✗
Fully open-source firmware with reproducible builds
✓
✗
Dual secure element (Keystone 3 Pro) for chip-level defense
✓
✗
Bitcoin-only firmware mode for BTC-focused users
✓
✗
Native MetaMask, Rabby, and Phantom integration as air-gapped signer
✓
✗
Multisig support for advanced custody setups
✓
✗
SD card firmware updates verified via file hash
✓
✗
Decode and display smart contract interaction details
✓
✗
PIN protection with wipe-on-failure
✓
✗
Passphrase support (BIP39 extension)
✓
✗
Self-custody seed phrase with shamir secret sharing option
✓
✗
Multi-chain wallet support
✗
✓
Built-in swap functionality
✗
✓
NFT gallery display
✗
✓
Real-time price updates
✗
✓
Secure transaction management
✗
✓
Cross-chain asset transfer
✗
✓
Decentralized finance integration
✗
✓
User-friendly interface design
✗
✓
Multi-asset storage
✗
✓
In-app NFT minting
✗
✓
Customizable wallet settings
✗
✓
Total Features
12
11
Quick Verdict
Independent analysis based on features, pricing, and user ratings
Choose Keystone if you need:
- ✓ True air-gapped signing via QR code only (no USB/BT/WiFi/NFC)
- ✓ 4-inch color touchscreen for clear transaction review
- ✓ Fully open-source firmware with reproducible builds
- ✓ Dual secure element (Keystone 3 Pro) for chip-level defense
- ✓ Bitcoin-only firmware mode for BTC-focused users
Choose Phantom if you need:
- ✓ Multi-chain wallet support
- ✓ Built-in swap functionality
- ✓ NFT gallery display
- ✓ Real-time price updates
- ✓ Secure transaction management
Pricing Comparison
Keystone starts at $99/mo; Phantom is free.
Keystone Plans
Paid plans only
Keystone EssentialBest Value
$99/one-time- • Air-gapped QR signing
- • 4-inch touchscreen
- • Open-source firmware
- • Multi-chain support
Keystone 3 Pro
$169/one-time- • Dual secure element chips
- • Enhanced tamper protection
- • Full multi-chain support
- • Bitcoin-only firmware option
Phantom Plans
Free tier available
Free
Free- • Free wallet
- • Solana, Ethereum, Bitcoin
- • Built-in swaps
- • NFT gallery
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