Updated September 28, 2026 · HodlCue Editorial Team
NGRAVE vs OneKey
NGRAVE
OneKey
Higher score in this comparison
What sets them apart
| Compare | NGRAVEReviewSee alternativesSee alternatives | OneKeyReviewSee alternativesSee alternatives |
|---|---|---|
| Price | €398 | $79 to $278 |
| Coins supported | 3,500 | 30,000Higher |
| Secure element | EAL7-certified secure element | EAL 6+ secure element |
| Open source | No | YesHas it |
| Connectivity | USB c | USB c, Bluetooth, NFCCovers more |
Same on both: Wallet type (Hardware), Custody (Self custody), Backup options (Seed).
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Key differences
- OneKey scores higher overall: 9.1 vs 8.4.
- Open source: only OneKey.
- Coins supported is higher at OneKey: 30,000 vs 3,500.
- Connectivity: only OneKey offers Bluetooth, NFC.
- Support channels: only OneKey offers Chat.
Our verdict on each
NGRAVE
NGRAVE is a hardware wallet for holders who want their own keys kept offline and can absorb a €398 outlay, ranking 116 of 120 on price. The EAL7-certified secure element is the reason to look here, and coverage of 3,500 coins rounds out a device built for storage rather than spending.
OneKey
OneKey is a self-custody hardware wallet for anyone who wants their own keys and broad coin coverage at a device price rather than a subscription. It scores 6.3 overall, with the offer carrying the weight and the cost side resting on what you pay for the device.
Score breakdown
| Area | NGRAVE | OneKey |
|---|---|---|
| Cost | 8.1Price of €398 against Trezor at $79 makes the hardware outlay heavy for a device bought once. | 8.7HigherHardware priced at $79 to $278 is a one-off outlay, and the cost part of the score is the weak spot, unlike the offer part. |
| Offer | 8.9Coverage of 3,500 coins plus a EAL7-certified secure element and self custody make the feature set strong. | 9.6HigherCoverage of 30,000 coins plus open source firmware give the offer part a full mark. |
| Trust | 8.3 | 9.2Higher |
Where they rank in our lists
| Ranking | NGRAVE | OneKey |
|---|---|---|
| Crypto wallets | 104 of 156 | 56 of 156 |
| Hardware and cold wallets | 25 of 58 | 10 of 58 |
Feature by feature
| Connectivity | NGRAVE | OneKey |
|---|---|---|
| USB c | Yes | Yes |
| Bluetooth | No | Yes |
| NFC | No | Yes |
| Backup options | NGRAVE | OneKey |
|---|---|---|
| Seed | Yes | Yes |
A third option
trokera has coins supported at 8,000,000, against 3,500 for NGRAVE and 30,000 for OneKey.
trokera reviewWhat we checked
NGRAVE
- ngrave.io: 12 facts, checked September 26, 2026
- shop.ngrave.io: 1 fact, checked September 26, 2026
OneKey
- onekey.so: 10 facts, checked September 26, 2026
- help.onekey.so: 2 facts, checked September 26, 2026
Every fact side by side
| Fact | NGRAVE | OneKey |
|---|---|---|
| Features | Self custody | Self custody |
| Legal entity | Hestara SRL | ONEKEY LIMITED |
| Headquarters | Belgium | Hong Kong |
| Founded | 2018 | Not confirmed |
| Support channels | Email, Help centre, Community | Email, Chat, Help centre, CommunityCovers more |
Where each stands against the rest
| Fact | NGRAVE | OneKey | Median |
|---|---|---|---|
| Coins supported | 3,500highest quarter | 30,000highest quarter | 75 |
Median across 85 listed providers.
Pros and cons
NGRAVE
Pros
- Full self custody, so the owner signs every transaction and no provider holds the balance.
- A EAL7-certified secure element does the signing, which is the reason many buyers pay more.
- Coin coverage of 3,500 ranks 10 of 108 on this site.
Cons
- The €398 device price is the heaviest outlay here, against Trezor at $79.
- The firmware is not open source, so buyers cannot read the code themselves.
- Support runs on email, help centre and community only.
OneKey
Pros
- Custody sits with you: self custody keeps the balance and the keys off any operator's books, unlike bynex, whose custody is custodial.
- The signing chip is a EAL 6+ secure element, a stated security rating rather than a marketing line.
- Coverage of 30,000 coins is the strongest part of the offer, and the app lists self-custody among its features.
Cons
- Support runs on email, chat and help centre only, so written channels carry the whole help load.
- On price, OneKey ranks 103 of 120 brands, so the device is not the cheapest option on the page.
- The range $79 to $278 is wide, so the higher specification device costs far more than the entry model.
Who each suits
NGRAVE
Who it suits
- Holders of larger sums who want self custody with keys kept offline.
- Buyers who shop on chip security rather than on the lowest device price.
- Owners of a wide coin set, since 3,500 coins are supported.
Who should look elsewhere
- Trezor buyers on a tight budget, since Trezor costs $79 against NGRAVE at €398.
- Bit2Me users who want a mobile wallet for spending rather than cold storage.
- bynex users who prefer custodial accounts to holding keys themselves.
OneKey
Who it suits
- Long term holders who want their keys offline and their coin list long.
- Buyers who read code, since the firmware and app are open source.
- Shoppers comparing hardware who want the entry price to sit at $79.
Who should look elsewhere
- Bit2Me, whose wallet is mobile, if a phone suits you better than a device you own.
- bynex, where custody is custodial, if you would rather an operator held the keys.
- Trezor, if you would rather pay one fixed $79 than choose a model across $79 to $278.
Current offers
NGRAVE
Current offer
Discount code
ULTIMATE COMBO PACK price reduction: EUR 568.00 (reduced from EUR 597.00)
Exclusive Deal on ULTIMATE COMBO PACK; taxes included
Source, checked September 26, 2026
Questions about each
NGRAVE
How much does the NGRAVE cost?+
The device is priced at €398, a hardware cost paid up front rather than a recurring charge. That places NGRAVE at 116 of 120 on price in this comparison, above cheaper hardware such as Trezor at $79.
Does the NGRAVE keep my coins offline?+
It does. Custody is self custody, so the private key stays on the device and transactions are signed on the hardware. Nothing depends on a provider holding a balance for you, which suits holders who want sole control of the keys.
OneKey
How much does a OneKey device cost?+
Devices are priced at $79 to $278, a range covering the entry model and the higher specification hardware in the same line. That figure is the cost of entry and there is no tier beyond it for extra accounts or extra services. It matters most for anyone planning to hold a wide set of coins, because coverage on the scale of 30,000 is where the money goes.
Who holds the crypto in a OneKey wallet?+
You do. The design runs on self custody, and the companion app lists self custody among its features. Nothing is deposited with an operator the way a custodial platform holds a balance, which is the main structural difference from an exchange account. The other side of that is that recovery is your job too, since nobody else holds a copy of the phrase.
Other options to compare
Other matchups
NGRAVE
OneKey