Keystone 3 ProKeystone · Hardware wallet
$149
list price, checked 2026-11-13List price
$149 sourcechecked 2026-11-13
Coins and tokens
5,500+ sourcechecked 2026-11-13The manufacturer's own figure, tokens included.
Chains named by the maker
Bitcoin-only edition
Yes sourcechecked 2026-11-13
Firmware source
Open source · MIT sourcechecked 2026-11-13
Reproducible build
not verified
Secure element
Yes · 3 chips sourcechecked 2026-11-13Microchip ATECC608B, Maxim DS28S60, Maxim MAX32520
Connections
QR, microSD sourcechecked 2026-11-13
Air-gapped signing
Yes sourcechecked 2026-11-13Signs by QR code or microSD, without a cable or radio link.
Screen
4" colour touchscreen, 480×800, fingerprint sensor sourcechecked 2026-11-13
Backup
not verified
Passphrase
not verified
Company location
Hong Kong (licence holder Yanssie HK Limited) sourcechecked 2026-11-13
Latest firmware
3.2.2
Released 11 Nov 2026 · 2 days ago
Checked by hand on 2026-11-13. Source · all versions
Fact scores
Sums of the facts on this page with fixed weights — formula. Not a review.
Security facts
65
| Firmware source published (open 30, restricted licence 20, partly 10) | 30 / 30 |
| Reproducible build documented | not verified · 0 / 10 |
| Secure element chip | 20 / 20 |
| Secure element certification stated (EAL5+ or higher) | 0 / 10 |
| Can sign without cable or radio (QR or microSD) | 10 / 10 |
| Bitcoin-only firmware or edition available | 5 / 5 |
| Passphrase supported | not verified · 0 / 5 |
| Multi-share (Shamir) backup | not verified · 0 / 10 |
Ease facts
65
| Touchscreen | 30 / 30 |
| Screen of 2 inches or more | 15 / 15 |
| Wireless link to a phone (Bluetooth or NFC) | 0 / 25 |
| USB data connection | 0 / 10 |
| QR code signing | 10 / 10 |
| microSD slot | 10 / 10 |
Value (points per $100)
44
Not affiliated with Keystone. Values can change after the check date — confirm on the manufacturer's page before buying.