💳 Tangem review: security, features and score
85/100SCORE · ATrustedHardware, keys on device
Grade A, excellent
Someone who will never manage a seed phrase and wants hardware security anyway.
The facts
- DEVELOPER
- Tangem, Switzerland
- LAUNCHED
- 2018
- TYPE
- Hardware card
- CUSTODY MODEL
- Hardware, keys on device
- KEY MODEL
- Seed generated on the card, or an optional seed phrase. Backup is a second and third card.
- CHAINS
- Bitcoin, Ethereum, Solana and 15,000 plus assets
- PLATFORMS
- iOS and Android by NFC tap
- OPEN SOURCE
- Partial
- AUDITS
- Audited, EAL6+ certified chip
- HARDWARE SUPPORT
- Is the hardware
- SWAP COST
- Routing fee on in-app swaps.
What it can do
How the score breaks down
Each dimension is explained on the methodology page.
Where it is strong and where it is not
✓ Strengths
- No battery, no cable, no charging, and it fits in a wallet
- Backup is simply a second card kept elsewhere
- EAL6+ certified chip
- Easiest hardware wallet by a distance
✗ Weaknesses
- No screen on the card, so you verify on the phone
- Firmware not fully open source
- Losing all your cards means losing the funds if you did not set a seed phrase
Incident history
No security breach or significant incident on record.
With no screen on the card, address verification happens on your phone. That is a weaker model than a device with its own display, and it is the real trade off for the convenience.
Reputation and reviews
A reputation score out of 100, kept separate from the feature score above. It reflects what users actually report over time rather than a star rating scraped on one day.
REPUTATION
80/100
A genuinely different approach: a card you tap on your phone, with no battery, cable or screen. Widely praised for how easy it is, and questioned by purists precisely because there is no screen to verify on.
Check current reviews yourself
Star ratings change constantly, so we link to the sources rather than printing a number that is out of date the day after it is written.
If something goes wrong
COMMON FIXES
Transaction stuck pendingYour transaction has sat as Pending for minutes or hours and nothing is moving.Transaction failed but the gas was still takenThe transaction reverted, you got nothing, and the fee left your wallet anyway.Token is not showing in my walletThe block explorer shows the tokens arrived, but the wallet shows nothing.I sent tokens to the wrong networkYou withdrew to your address but picked the wrong chain, and the balance is not where you expected.
RISK WARNING
Crypto assets are highly volatile and largely unregulated. You can lose everything you put in.
Nothing on this page is financial, investment or tax advice, and nothing here is a recommendation
to buy or sell any asset. Do your own research and never commit money you cannot afford to lose.