KeystoneAir-gapped wallet

Keystone 3 Pro

Name: Keystone 3 Pro
Brand: Keystone

Keystone 3 Pro is an air-gapped wallet released in April 2024. Key specs: secure element chip, open-source firmware, air-gapped signing, signing connectivity QR code, microSD.

8.5Score

Security9.3

Open source8.8

Bitcoin features8.3

Ease of use9.3

Connectivity7.4

price range€125–155Reference price converted from USD

Full specifications

Released: April 2024
Type: Air-gapped wallet
Brand: Keystone
Popularity: #14 of 141
Model numbers: Yanssie HK Limited Keystone3 ProKeystone3 Pro

YesSecure Element chip

YesOpen-source firmware

YesAir-gapped signing

QR code, microSDSigning connectivity

4″Screen size

YesBuilt-in battery

103 gWeight

Spec guide

How it ranks among air-gapped wallets

Spec guide

Screen size · 4″Top 8%Weight · 103 gBottom 23%

Compared with every model of this kind in the catalog.

Specifications

Full specifications

Security

Secure Element chip: Yes
Air-gapped signing: Yes
100% air-gapped: Yes
Supply-chain & tamper protection: Yes
Secure boot: Yes
Anti-klepto (anti-exfil) signing: No

Firmware & open source

Open-source firmware: Yes
Source code available: Yes
Reproducible builds: Yes
Firmware licence: MIT
Upgradable firmware: Yes
Firmware update via: USB, microSD
Bitcoin-only firmware / edition: Yes

Device lock

PIN lock: Yes
PIN entered on the device: Yes
Fingerprint unlock: Yes
Duress PIN / decoy wallet: Yes
Brick / wipe PIN: No
Wipe after failed attempts: Yes
Time-delayed unlock: No
Anti-phishing words: No

Keys & backup

BIP39 passphrase: Yes
Shamir backup (SLIP-39): Yes
Seed XOR: No
BIP85 child seeds: No
24-word seed: Yes
SeedQR backup: No
microSD backup: No
NFC backup card: No
User-added entropy (dice): Yes
Stateless use (no stored keys): No
Multiple seeds on one device: Yes

Bitcoin features

Multisig: Yes
Taproot: Yes
Miniscript: No
Message signing: Yes
Coin control: Yes
Own node connection: Yes
Tor support: Yes
Replace-by-fee: Yes
Silent Payments: No
Spending limits: No
Testnet: Yes

Supported assets

Altcoins & tokens: Yes
Bitcoin only: No

Connectivity

Signing connectivity: QR code, microSD
USB: No
USB-C: Yes
Bluetooth: No
NFC: No
QR code camera: Yes
Animated QR (UR): Yes
microSD signing: Yes

Screen & input

Screen: Yes
Screen size: 4″
Screen type: LCD
Screen resolution: 800 × 480
Touchscreen: Yes
Colour screen: Yes
Gorilla Glass: No
Controls: Touch Screen
QWERTY keyboard: Yes

Battery & power

Built-in battery: Yes
Battery capacity: 1,000 mAh
Removable battery: No
Wireless charging: No

Design

Weight: 103 g
Length: 103.9 mm
Width: 62.5 mm
Thickness: 12.9 mm
Materials: Fiberglass
Water / dust resistance: No
Several colours available: No
Warranty (months): 24
Assembled in: China
DIY build possible: No

Apps

Official apps: Android, iOS
Desktop app: No
Mobile app: Yes
Works with wallet apps: Bitcoin Safe, Wasabi, Zeus, Nunchuk, Cove, Electrum, Sparrow, Specter Desktop, BlueWallet, Bitcoin Keeper, Bull
Compatible third-party wallets: 11

Other features