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  3. Passport Prime vs Zero

Foundation Passport Prime vs NGRAVE Zero

What Passport Prime does better (22) and where Zero wins (4) — every spec side by side.

Foundation Passport Prime
Foundation · 2025Passport Prime
9.3Score
22 advantages≈ €320
Higher score
vs
NGRAVE Zero
NGRAVE · 2021Zero
7.0Score
4 advantages≈ €370
8.3Security4.4
8.8Open source4.9
9.3Bitcoin features5.4
8.3Ease of use7.4
9.3Connectivity4.9

Why is Passport Prime better than Zero?

  1. Open-source firmwareYes · Zero: No
  2. Reproducible buildsYes · Zero: No
  3. 100% air-gappedYes · Zero: No
  4. Source code availableYes · Zero: No
  5. TaprootYes · Zero: No
  6. Compatible third-party wallets14 vs 0
  7. Anti-phishing wordsYes · Zero: No
  8. Shamir backup (SLIP-39)Yes · Zero: No
  9. BIP85 child seedsYes · Zero: No
  10. SeedQR backupYes · Zero: No
  11. microSD backupYes · Zero: No
  12. Message signingYes · Zero: No

Why is Zero better than Passport Prime?

  1. Fingerprint unlockNo · Passport Prime: Yes
  2. Warranty (months)12 vs 242×
  3. Screen size3.5″ vs 4″+14%
  4. Battery capacity1,100 mAh vs 1,200 mAh+9%
Specifications

Side by side

NGRAVE ZeroNGRAVE Zero≈ €3707.0
Security
Secure Element chipYesYes
Secure Element certification—EAL5+
Air-gapped signingYesYes
100% air-gappedYesNo
Supply-chain & tamper protectionYesYes
Secure bootYesYes
Anti-klepto (anti-exfil) signingNoNo
Firmware & open source
Open-source firmwareYesNo
Source code availableYesNo
Reproducible buildsYesNo
Firmware licenceGPLv3—
Upgradable firmwareYesYes
Firmware update viaBluetoothUSB
Bitcoin-only firmware / editionNoNo
Device lock
PIN lockYesYes
PIN entered on the deviceYesYes
Fingerprint unlockNoYes
Duress PIN / decoy walletNoNo
Brick / wipe PINNoNo
Wipe after failed attemptsYesYes
Time-delayed unlockNoNo
Anti-phishing wordsYesNo
Keys & backup
BIP39 passphraseYesYes
Shamir backup (SLIP-39)YesNo
Seed XORNoNo
BIP85 child seedsYesNo
24-word seedYesYes
SeedQR backupYesNo
microSD backupYesNo
NFC backup cardNoNo
User-added entropy (dice)YesYes
Stateless use (no stored keys)YesNo
Multiple seeds on one deviceYesNo
Bitcoin features
MultisigYesYes
TaprootYesNo
MiniscriptNoNo
Message signingYesNo
Coin controlYesNo
Own node connectionYesNo
Tor supportYesNo
Replace-by-feeYesNo
Silent PaymentsNoNo
Spending limitsNoNo
TestnetYesNo
Supported assets
Altcoins & tokensYesYes
Bitcoin onlyNoNo
Connectivity
Signing connectivityBluetooth, QR code, microSDQR code
USBNoNo
USB-CYesYes
BluetoothYesNo
NFCNoNo
QR code cameraYesYes
Animated QR (UR)YesNo
microSD signingYesNo
Screen & input
ScreenYesYes
Screen size3.5″4″
Screen typeIPSLCD
Screen resolution480 × 800400 × 800
TouchscreenYesYes
Colour screenYesYes
Gorilla GlassYesNo
ControlsTouch ScreenTouch Screen
QWERTY keyboardYesYes
Battery & power
Built-in batteryYesYes
Battery capacity1,100 mAh1,200 mAh
Removable batteryNoNo
Wireless chargingNoNo
Design
Weight93 g180 g
Length104 mm125 mm
Width55.5 mm70 mm
Thickness11 mm14 mm
MaterialsAluminiumAlloy of metals
Water / dust resistanceYesYes
IP rating—IP55
Several colours availableYesNo
Warranty (months)1224
Assembled inUSABelgium
DIY build possibleNoNo
Apps
Official appsAndroid, iOSAndroid, iOS
Desktop appNoNo
Mobile appYesYes
Works with wallet appsBitcoin Safe, Theya, Wasabi, Zeus, Nunchuk, Cove, Electrum, Sparrow, Specter Desktop, Blockstream Green, BlueWallet, Bitcoin Keeper, Bull, Casa—
Compatible third-party wallets140
Other features
FIDO2 / U2F security keyYesNo
Password managerNoNo
To compare: 0up to 4 models
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