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World's most secure air-gapped wallet with biometrics and EAL7+ certified security — the highest level achievable. Your keys never touch the internet.
Why NGRAVE
Every design decision in NGRAVE ZERO was made with one goal: absolute security. See how it compares to the alternatives.
The highest security certification ever achieved by a hardware wallet — the same level used in military-grade systems.
No USB, no Bluetooth, no NFC. All communication happens via QR codes, making remote attacks physically impossible.
Built-in fingerprint sensor ensures only you can authorise transactions — no PIN interception possible.
Stainless steel backup plate that survives fire, flood and physical destruction — your seed phrase protected forever.
#1 NGRAVE ZERO |
Ledger Flex |
Trezor Safe 5 |
|
|---|---|---|---|
| Security Certification | ✓ EAL7+ | EAL6+ | ✗ None |
| Air-Gapped (No USB/BT/NFC) | ✓ Full QR | ✗ USB + BT | ✗ USB |
| Biometric Authentication | ✓ Fingerprint | ✗ No | ✗ No |
| Open-Source Firmware | ✓ Yes | Partial | ✓ Yes |
| Metal Backup Solution | ✓ GRAPHENE | ✗ No | ✗ No |
| Touchscreen Display | ✓ 4" Full Color | ✓ Yes | ✓ Yes |
| Supply Chain Verification | ✓ Cryptographic | Limited | Limited |
NGRAVE OS v3.2.1 is now available. This update includes critical security hardening and new token support. Your keys never leave the device during the update.
Launch the NGRAVE LIQUID companion app on your desktop.
Scan the QR code displayed on your ZERO device screen.
Follow the on-screen prompts to install the new OS version.
Confirm the new version number on your ZERO device screen.
Released April 2026 · Free update for all ZERO owners
The Complete System
NGRAVE ZERO secures your crypto. NGRAVE GRAPHENE secures your recovery. Together, they form the most complete security solution available.
The world's most secure hardware wallet. EAL7+ certified, fully air-gapped, with a biometric fingerprint sensor and a 4-inch touchscreen.
The ultimate seed phrase backup. Two stainless steel plates that survive fire up to 1665°C, floods, and physical destruction.
How It Works
Getting started with NGRAVE takes under 10 minutes. No technical knowledge required.
Verify the tamper-evident packaging and power on your NGRAVE ZERO. The device guides you through the initial setup with clear on-screen instructions.
Create your unique private key entirely offline. Use the GRAPHENE backup to record your seed phrase on indestructible stainless steel plates.
Pair with the NGRAVE LIQUID app via QR code. Manage your portfolio, sign transactions, and stay in full control — all without ever connecting to the internet.
Features
Military-grade secure element chip — the highest security certification ever achieved by a consumer hardware wallet.
No USB port, no Bluetooth, no NFC, no WiFi. The only way to communicate is via QR codes — making remote hacks impossible.
Built-in biometric authentication ensures that only your fingerprint can unlock the device and authorise transactions.
Cryptographic verification at every step of the supply chain ensures your device hasn't been tampered with before delivery.
Bitcoin, Ethereum, Solana, and over 1,000 other cryptocurrencies and tokens supported out of the box.
The free NGRAVE LIQUID app lets you manage your portfolio and sign transactions — all without exposing your private keys.
Trusted Worldwide
"After the Ledger data breach I knew I needed something better. NGRAVE ZERO is in a completely different league — the air-gap alone gives me peace of mind I never had before."
"The EAL7 certification is what sold me. I work in cybersecurity and I know what that rating means. NGRAVE is the only wallet I trust with my long-term holdings."
"GRAPHENE is genius. I had my seed phrase on paper and always worried about fire. Now it's etched in steel and I sleep soundly. The whole NGRAVE ecosystem is exceptional."
Supported Assets
And many more. View all supported assets →
To update your NGRAVE ZERO firmware to the latest operating system, you need to install the NGRAVE Desktop App. The update is free, takes under 5 minutes, and your keys never leave the device.