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Ngrave Zero vs OneKey Pro vs Trezor Safe 7
Comparing 3 wallets: Ngrave Zero (61/100, $398), OneKey Pro (91/100, $278), and Trezor Safe 7 (90/100, $249). Prices range from $249 to $398.
3 wallets
Open-source vs Closed
No IP rating vs IP55
$149 price gap
Quick VerdictUpdated 2026
Ngrave Zero
Ngrave
$398
OneKey Pro
Best overall
$278
Trezor Safe 7
Best valueHighest security
$249
Key Takeaways
- Trezor Safe 7 wins in security (100/100)
- Trezor Safe 7 wins in ease of use (79/100)
- Trezor Safe 7 is more affordable ($249)
- Both support 15+ cryptocurrencies
- Best for beginners: Trezor Safe 7 (easier setup)
Ngrave Zero vs OneKey Pro vs Trezor Safe 7: Key Differences
Picking between 3 hardware wallets (Ngrave Zero vs OneKey Pro vs Trezor Safe 7) usually comes down to a handful of trade-offs, not a single winner. Prices run from $249 to $398; overall scores from 61 to 91/100 — and the spread tells a story. Here's where each one earns its keep, and where it falls short.
Detailed Pair Comparisons:
Winner by Category
Which wallet leads in each area
Security
TieNgrave Zero73/100
OneKey Pro100/100
Trezor Safe 7100/100
Ease of Use
TieNgrave Zero71/100
OneKey Pro79/100
Trezor Safe 779/100
Price
Ngrave Zero$398
OneKey Pro$278
Trezor Safe 7Winner$249
Coin Support
Ngrave Zero15+
OneKey Pro40+
Trezor Safe 7Winner50+
Privacy
Ngrave Zero34/100
OneKey ProWinner100/100
Trezor Safe 793/100
Beginner Friendly
TieNgrave Zero71/100
OneKey Pro79/100
Trezor Safe 779/100
Comparing:
Ngrave Zero
OneKey Pro
Trezor Safe 7
Comparison Table
Key specifications for your decision
| Criteria | Ngrave Zero Ngrave $398 | OneKey Pro OneKey $278 | Trezor Safe 7 Trezor $249 |
|---|---|---|---|
Overall Rating | 61 | 91 | 90 |
Security | 73 | 100 | 100 |
Usability | 71 | 79 | 79 |
Price | $398 | $278 | $249 |
EAL Certification (Evaluation Assurance Level) from Common Criteria rates the security of hardware components, like secure chips in crypto hardware wallets. Higher levels, such as EAL5+ or EAL6+, indicate stronger resistance to attacks. Learn more | Yes | Yes | Yes |
Open Source Firmware refers to firmware in hardware devices, like wallets, where the source code is publicly available, allowing transparency, auditability, and customization. Learn more | No | Yes | Yes |
Bluetooth Connectivity enables wireless communication between devices, like hardware wallets and smartphones, using Bluetooth or Bluetooth Low Energy (BLE) for secure data transfer. Learn more | No | No | Yes |
USB | No | Yes | Yes |
Networks | 15+ | 40+ | 50+ |
A passphrase is an additional security layer for cryptocurrency wallets, acting as a 25th word in the BIP39 seed phrase, protecting access to hidden wallets. Learn more | Yes | Yes | Yes |
A touchscreen display is a screen that allows users to interact with a device by touching the surface, commonly used in hardware wallets for easy navigation and transaction confirmation. Learn more | LCD Capacitive Touchscreen (480x800, 600 Cd/M²) | Color IPS Touchscreen | Color Touchscreen |
Recovery is the process of restoring access to a cryptocurrency wallet using its seed phrase or mnemonic backup if the original wallet is lost or inaccessible. Learn more | 24-word seed | 24-word + Shamir | Multi-card |
Setup Time | ~20 min | ~7 min | ~5 min |
IP Rating refers to the level of protection a device has against dust and water, often used for hardware wallets to indicate their durability in various environments. Learn more | IP55 | None | IP67 |
Our Verdict: Ngrave Zero vs OneKey Pro vs Trezor Safe 7
Choose Ngrave Zero if...
- You trust third-party audits (Common Criteria EAL7 certification of integrated ProvenCore TEE (Prove & Run)) over open-source review
- You are comfortable managing a seed phrase
Skip Ngrave Zero if...
- ×Open-source firmware is non-negotiable for you
- ×Budget is tight — you'd be better served by a cheaper option in this comparison
- ×You want Shamir Secret Sharing for split, geographically distributed backups
Choose OneKey Pro if...
- You are comfortable managing a seed phrase
- You prefer USB-only connection for maximum security
Skip OneKey Pro if...
- ×You want a seedless backup design instead of a 12/24-word phrase
- ×You need a device with an official IP rating against water and dust
Choose Trezor Safe 7 if...
- You prefer seedless backup via multiple linked cards
Our pick for most users
Both wallets score similarly (61 vs 91/100) — your choice depends on which features matter most to you.
Bottom line: Trezor Safe 7 is our pick — it leads on both security and ease of use, and the overall score reflects that. If budget is real, Trezor Safe 7 comes in $149 cheaper without giving up the basics.
Price: Ngrave Zero vs OneKey Pro vs Trezor Safe 7
Prices range from $249 (Trezor Safe 7) to $398 (Ngrave Zero). The extra cost of Ngrave Zero gets you a -29-point higher overall rating. For budget buyers, Trezor Safe 7 offers solid security at a lower price point.
Who Should Pick Which Wallet
Recommendations based on real-world use cases
Ngrave Zero
$398Water resistanceBuilt-in batteryAndroid supportiOS support
Pros
- +Fully air-gapped — QR-only signing with no USB data, Bluetooth, NFC or WiFi
- +EAL7-certified ProvenCore operating system, the highest assurance tier for a device OS
- +Biometric fingerprint sensor plus an 8-digit PIN, with tamper-triggered auto-wipe
- +Proprietary Perfect Key generation and the steel GRAPHENE backup ecosystem
Cons
- −Closed-source firmware that fails WalletScrutiny reproducibility checks
- −Premium price ($398, and more with the GRAPHENE backup)
- −No built-in WalletConnect; dApp access relies on MetaMask/Rabby
- −QR-only workflow is slower than USB or Bluetooth signing
OneKey Pro
$278Built-in batteryBetter privacy featuresCoin controlCoinJoin support
Pros
- +CC EAL6+ secure element (ATECC608B) — highest certified SE tier available
- +4-inch color IPS touchscreen dwarfs most competitors' small displays
- +Fully open-source firmware with reproducible builds for independent auditing
- +Shamir Secret Sharing splits seed across multiple recovery shares
Cons
- −At $278, it is among the most expensive consumer hardware wallets available
- −No Bluetooth or NFC limits wireless connectivity options vs. competitors
- −No water resistance rating despite aluminum alloy construction
- −Battery dependency means device is inoperable when discharged
Trezor Safe 7
$249Water resistanceBuilt-in batteryBetter privacy featuresCoin control
Pros
- +TROPIC01 open secure element allows full auditability, unlike closed SE chips
- +EAL6+ certified secure element, highest certification tier among consumer wallets
- +SLIP-39 Shamir Secret Sharing splits seed across multiple shares by default
- +2.5-inch color touchscreen is the largest display in its hardware wallet class
Cons
- −At $249, it is the most expensive Trezor model, nearly 3x the Trezor Model One
- −No NFC support, limiting tap-to-sign workflows available on competing devices
- −Bluetooth attack surface introduces wireless threat vectors absent in USB-only wallets
- −Multisig support is basic only, lacking advanced coordinator tooling on-device
Best for These Profiles
Pre-Purchase Checklist
Important points to verify regardless of your choice
All wallets ship from official manufacturer stores with full warranty.
Ngrave Zero vs OneKey Pro vs Trezor Safe 7: Frequently Asked Questions
Answers about Ngrave Zero vs OneKey Pro vs Trezor Safe 7
Is Ngrave Zero better than OneKey Pro?
On the numbers, OneKey Pro comes out ahead — 91/100 vs 61/100 — but 'better' isn't quite the right frame. Ngrave Zero offers a different feature set, which matters more for some buyers than overall score does. If overall rating is what you actually weigh first, take OneKey Pro. If specific features is the constraint that shapes your decision, Ngrave Zero is the smarter buy. Either way, both are real hardware wallets — neither is a mistake.
How much do Ngrave Zero and OneKey Pro and Trezor Safe 7 cost?
Ngrave Zero costs $398, OneKey Pro costs $278, Trezor Safe 7 costs $249. These are list prices for the standard edition from official manufacturer stores. A few things worth knowing: hardware wallet prices barely move during the year, so 'waiting for a sale' rarely pays off — Black Friday is the one exception, with 10–20% off being typical. Avoid third-party listings even if they're cheaper; the supply chain risk on a tampered device wipes out any savings the first time you load funds. And don't buy a 'used' hardware wallet, ever — even if it claims to be reset.
What happens if I lose all my Trezor Safe 7 cards?
Funds are unrecoverable. There's no seed phrase to fall back on, no recovery service, no manufacturer override — that's the explicit design trade-off. The mitigation is the multi-card set: every card you receive is a complete, independent backup of the same wallet. Realistic plan: keep one card on you, one at home in a safe, and one with a trusted person or in a bank deposit box. Lose any two and you're still fine. Lose all of them and the coins are gone forever.
Is OneKey Pro waterproof?
No — OneKey Pro has no official water or dust resistance rating, so treat it like any other small electronic. A spilled drink or a rainstorm in your jacket pocket is enough to brick it. Ngrave Zero, by contrast, carries an IP55 rating, which means it's tested against dust and pressurized water — that's the device you'd actually take camping or to a beach. For most people, water resistance isn't a deciding factor, but it matters if you travel light or carry your wallet daily.
Which wallet is better for DeFi and Web3: Ngrave Zero or OneKey Pro?
Ngrave Zero — and the gap is bigger than the spec sheets make it look. Ngrave Zero has WalletConnect built in, which means you sign DeFi transactions directly from a hardware wallet without exposing keys to a hot wallet. OneKey Pro can technically work with DeFi via third-party software, but every extra step is one more place an attacker can intercept the transaction you're approving. If you're going to be clicking 'Sign' on smart contracts more than once a month, the difference compounds fast.
Ngrave Zero vs OneKey Pro: which has better backup options?
Ngrave Zero uses a standard 24-word seed phrase. OneKey Pro uses a 24-word seed phrase with optional Shamir Secret Sharing for split backups. Both work — but they reflect different ideas about what 'backup' should be. The seed phrase approach (BIP-39) is the open industry standard: portable across most wallets, well-documented, and recoverable on any compatible device. The downside is well-known too — it's a piece of paper that's a single photograph or careless moment away from disaster. Card-based backups can't be photographed and don't write themselves down, but they're proprietary, which means you trust one manufacturer to stay in business and keep the format alive. Pick based on which failure mode worries you more.
Is OneKey Pro more secure than Ngrave Zero because it's open-source?
Not automatically — and this is a more nuanced question than the marketing suggests. Open-source (OneKey Pro) lets anyone (researchers, hobbyists, paranoid users) read the firmware and verify there are no backdoors. That's the strongest possible trust signal. Ngrave Zero keeps source code private but compensates with paid third-party audits from Common Criteria EAL7 certification of integrated ProvenCore TEE (Prove & Run) and certifications like CC EAL5+/EAL6+ on the secure element. Open-source is the more transparent posture; audited closed-source can still be cryptographically airtight. Our honest take: if open-source is the deciding factor for you philosophically, pick OneKey Pro — but don't dismiss Ngrave Zero as 'less secure' purely on that basis.
Where to buy Ngrave Zero at the best price?
Always buy Ngrave Zero from the official Ngrave store — never from Amazon, eBay, or third-party marketplaces, even if the price looks better. Hardware wallets have been physically tampered with in the supply chain before (compromised devices shipped to unsuspecting buyers, then drained the moment funds were loaded). Buying direct from Ngrave gets you a sealed unit with full warranty, firmware integrity, and a clean chain of custody. Free shipping and occasional discounts at the source make the price difference negligible anyway.
Made your decision?
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More Comparisons
Compare Ngrave Zero with other wallets
Official store
Ngrave Zero$398 · 61/100
OneKey Pro$278 · 91/100
Trezor Safe 7$249 · 90/100
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