NGRAVE ZERO Review
NGRAVE ZERO is a premium air-gapped hardware wallet for users who value QR-only signing, a large touchscreen, fingerprint authentication backed by a PIN, tamper protection, and EAL7-certified OS claims more than open-source transparency or low price. It pairs with Rabby Wallet and MetaMask for fully offline Web3 signing, and NGRAVE sells an optional GRAPHENE steel backup. As of October 2026 the official store lists ZERO as sold out, so availability should be checked before purchase.
NGRAVE ZERO
Pros
- Strong fit for Airgap Security Seekers
- Strong fit for Premium Buyers
- Strong fit for Long Term Holders
- Strong fit for Users Wanting Large Touchscreen
Cons
- Not ideal for Budget Conscious Users
- Not ideal for Open source Advocates
- Not ideal for Bitcoin only Minimalists
- Not ideal for Desktop First Users
- Price
- $398
- Connectivity
- QR, USB-C charging only
- Open Source
- Closed source
- Coins
- 3,500+
Key Specifications
- Manufacturer
- NGRAVE
- Country
- Belgium
- Launch Year
- 2020
- Firmware Maintained
- Yes
- Secure Element
- Yes
- Air-gapped
- Yes
- Connection
- QR, USB-C charging only
- Official App
- NGRAVE LIQUID
Security Model
High-assurance air-gapped hardware wallet with a custom EAL7-certified operating system, secure element, QR-only transaction flow, fingerprint-assisted authentication, tamper protection, and offline key generation.
Trust Assumptions
- Users trust NGRAVE's proprietary custom OS and firmware implementation
- The EAL7-certified OS and secure element protect secrets as documented
- QR transaction parsing and LIQUID app coordination remain correctly implemented
- Users verify transaction details on the 4-inch device display before approval
- Users protect the recovery material or optional GRAPHENE backup from physical disclosure
- USB-C is used only for charging and secure firmware updates, not transaction signing
Backup Methods
- Airgap Security Seekers
- Premium Buyers
- Long Term Holders
- Users Wanting Large Touchscreen
- Users Wanting Fingerprint Authentication
- Budget Conscious Users
- Open source Advocates
- Bitcoin only Minimalists
- Desktop First Users
- Users Wanting Broad Third Party Wallet Support
Known Issues
2026: Closed-source high-assurance tradeoff
NGRAVE emphasizes certification and proprietary security engineering rather than public firmware and hardware transparency, making it less attractive for users who prioritize open-source verifiability.
Sources
- NGRAVE ZERO Official Store
official
- NGRAVE ZERO Product Page
official
- NGRAVE Custom EAL7 Operating System
official
- NGRAVE GRAPHENE Official Store
official
- NGRAVE Official Blog
official
- NGRAVE Support Center
official
Compare with other wallets
Related Wallet Reviews
Similar options worth comparing before you buy.
COLDCARD Mk5 is a Bitcoin-only signer for users who prioritize air-gapped PSBT workflows, dual secure elements, reproducible firmware, multisig, and privacy over beginner polish or multi-asset support.
$189
COLDCARD Q
Bitcoin UsersCOLDCARD Q is a premium Bitcoin-only signer for advanced users who want air-gapped PSBT signing through QR or MicroSD, dual secure elements, replaceable AAA power, a large screen, and QWERTY passphrase entry.
$289
Keystone Keystone 3 Pro
Airgap Security SeekersKeystone 3 Pro is a strong air-gapped QR-signing wallet for users who want a large touchscreen, fingerprint convenience, broad multi-chain support, and triple secure elements, but it carries more firmware and ecosystem complexity than Bitcoin-only cold-storage devices.
$149
Discount applied via our official partner link at checkout.
SafePal S1
Budget Conscious UsersSafePal S1 is a very affordable QR-based air-gapped hardware wallet for mobile-first multi-chain users who want broad token support and offline signing, but it depends heavily on the SafePal app ecosystem and is less compelling for open-source purists or Bitcoin-only multisig users.
$49.99
Use this code at checkout on the official store.
SFP@MiCA