Updated September 28, 2026 · HodlCue Editorial Team
Coinkite Coldcard vs OneKey
Coinkite Coldcard
OneKey
Higher score in this comparison
Where Coinkite Coldcard and OneKey differ
| Compare | Coinkite ColdcardReviewSee alternativesSee alternatives | OneKeyReviewSee alternativesSee alternatives |
|---|---|---|
| Price | $219 to $319 | $79 to $278Lower |
| Coins supported | 1 | 30,000Higher |
| Secure element | dual secure elements: Microchip ATECC608 and Maxim DS28C36B | EAL 6+ secure element |
| Connectivity | USB c, NFC | USB c, Bluetooth, NFCCovers more |
Same on both: Wallet type (Hardware), Custody (Self custody), Open source (Yes), Backup options (Seed).
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Key differences
- OneKey scores higher overall: 9.1 vs 9.0.
- Price is lower at OneKey: $79 to $278 vs $219 to $319.
- Coins supported is higher at OneKey: 30,000 vs 1.
- Connectivity: only OneKey offers Bluetooth.
- Support channels: only OneKey offers Chat.
Our verdict on each
Coinkite Coldcard
Coinkite Coldcard is a hardware wallet for readers who want their own keys and inspectable firmware, sold at a device price of $219 to $319. It suits a focused, self-custody setup rather than a long asset list, and buyers willing to pay for hardware up front.
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 | Coinkite Coldcard | OneKey |
|---|---|---|
| Cost | 8.4Cost is a single purchase at $219 to $319, set at the high end of the hardware range rather than tracked as a fee. | 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 | 8.9A seed backup and a narrow asset focus keep the offer tight at 1 coin. | 9.6HigherCoverage of 30,000 coins plus open source firmware give the offer part a full mark. |
| Trust | 9.5Higher | 9.2 |
Choosing between them
Pick Coinkite Coldcard if trust matter most.
Pick OneKey if cost, offer, price, coins supported, and connectivity matter most.
Side by side, item by item
| Connectivity | Coinkite Coldcard | OneKey |
|---|---|---|
| USB c | Yes | Yes |
| Bluetooth | No | Yes |
| NFC | Yes | Yes |
| Backup options | Coinkite Coldcard | OneKey |
|---|---|---|
| Seed | Yes | Yes |
How they place
| Ranking | Coinkite Coldcard | OneKey |
|---|---|---|
| Crypto wallets | 65 of 156 | 56 of 156 |
| Hardware and cold wallets | 13 of 58 | 10 of 58 |
Sources behind this comparison
Coinkite Coldcard
- coldcard.com: 6 facts, checked September 26, 2026
- coinkite.com: 5 facts, checked September 26, 2026
- linkedin.com: 1 fact, checked September 26, 2026
- store.coinkite.com: 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 | Coinkite Coldcard | OneKey |
|---|---|---|
| Features | Self custody | Self custody |
| Legal entity | Coinkite Inc. | ONEKEY LIMITED |
| Headquarters | Canada | Hong Kong |
| Founded | 2012 | Not confirmed |
| Support channels | Email, Help centre, Community | Email, Chat, Help centre, CommunityCovers more |
Where each stands against the rest
| Fact | Coinkite Coldcard | OneKey | Median |
|---|---|---|---|
| Price | $219 to $319highest quarter | $79 to $278above the median | $0 |
| Coins supported | 1lowest quarter | 30,000highest quarter | 75 |
Median across 85 listed providers.
Pros and cons
Coinkite Coldcard
Pros
- Custody is self custody, so the holder keeps control rather than a provider.
- Open source is listed, so the code behind the device can be reviewed by others.
- Dual secure elements, dual secure elements: Microchip ATECC608 and Maxim DS28C36B, add a second layer around signing.
Cons
- A device price of $219 to $319 makes it one of the costliest options in its group.
- Coin support of 1 rules out readers holding a long asset list.
- Support runs on email, help centre and community only, with no phone line among them.
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
Coinkite Coldcard
Who it suits
- Holders who want self-custody on open source hardware and hold a narrow set of assets.
- Security-minded readers who value dual secure elements and a seed backup they control.
- Buyers comfortable with a single purchase of $219 to $319 rather than an ongoing account.
Who should look elsewhere
- Readers on a budget, since Trezor is listed at $79.
- Multi-coin holders, because Bit2Me runs as a mobile wallet instead.
- Anyone who wants a provider rather than a device: bynex is custodial.
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
Coinkite Coldcard
Current offer
Discount code
Save 10% with Bitcoin at checkout: CKBTC
On-chain payments only
Source, checked September 26, 2026
Questions about each
Coinkite Coldcard
What does a Coinkite Coldcard cost?+
The hardware is listed at $219 to $319, a range covering the models sold in the store. It is a one-time purchase rather than a recurring charge, and on price the brand ranks 110 out of 120 in the group compared.
Who holds the keys on a Coldcard?+
You do. Custody is self custody, so the holder keeps control of the keys rather than a provider. That suits readers who want their coins outside any exchange or custodial account.
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
Coinkite Coldcard
OneKey