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Comparing A Few Hardware Wallets

When comparing signing devices (a.k.a. hardware wallets), the same names show up time and time again. Let's take a look at the COLDCARD® Q, Mk5, Mk4, and Mk3, versus the Ledger Nano X, Trezor Model T, BitBox2, BitKey, and Tangem Wallet.

Learn more about the features and functions by clicking the linked descriptions.

Once you've seen how COLDCARD is the most secure signing device (a.k.a. hardware wallet) for self-custody, check out our overview of software wallets and other financial tools proven to work with COLDCARD.

Features and functions COLDCARD Q COLDCARD Mk5 & Mk4 COLDCARD Mk3 Ledger Nano X Trezor Model T BitBox 2 BitKey Tangem Wallet
Security Highlights
Verifiable source code Checked Checked Checked Disabled Checked Checked Warning Warning
Onboard anti-phishing protection Checked Checked Checked Disabled Disabled Disabled Disabled Disabled
Fully air-gapped operation Checked Checked Checked Disabled Disabled Disabled Checked Disabled
On screen destination verification Checked Checked Checked Checked Checked Checked Disabled Disabled
Multiple vendors for security chips Checked Checked Disabled Disabled Disabled Disabled Disabled Disabled
Encrypted USB communication (MiTM protection) Checked Checked Checked Disabled Disabled Checked Disabled Disabled
Encrypted backup via MicroSD Checked Checked Checked Disabled Disabled Disabled Disabled Disabled
Secure secret sharing (Key Teleport) Checked Disabled Disabled Disabled Disabled Disabled Disabled Disabled
Signed export files Checked Checked Disabled Disabled Disabled Disabled Disabled Disabled
Self-destruct PIN Checked Checked Checked Disabled Checked Disabled Disabled Disabled
Decoy/Duress wallet PIN Checked Checked Checked Checked Disabled Disabled Disabled Disabled
Supply Chain and Physical Security
Device linked to serialized, tamper-evident packaging Checked Checked Checked Disabled Disabled Disabled Disabled Disabled
Viewable electronics Checked Checked Checked Disabled Disabled Disabled Disabled Disabled
Device Design
Qwerty Keyboard Checked Disabled Disabled Disabled Disabled Disabled Disabled Disabled
QR Scanner Checked Disabled Disabled Disabled Disabled Disabled Disabled Disabled
Verify Address Ownership Checked Checked Checked Disabled Checked Disabled Disabled Disabled
MicroSD card slot Checked Checked Checked Disabled Checked Checked Disabled Disabled
Dual MicroSD card slots Checked Disabled Disabled Disabled Disabled Disabled Disabled Disabled
Password Manager Checked Checked Disabled Disabled Disabled Disabled Disabled Disabled
Secure Notes Checked Disabled Disabled Disabled Disabled Disabled Disabled Disabled
Physical keypad Checked Checked Checked Disabled Disabled Disabled Disabled Disabled
Large Screen Checked Disabled Disabled Disabled Disabled Disabled Disabled Disabled
Calculator Login Checked Disabled Disabled Disabled Disabled Disabled Disabled Disabled
Dedicated secure element Checked + Checked Checked + Checked Checked Checked Disabled Checked Disabled Checked; vulnerability disclosure linked
USB-C connector Checked Checked Disabled Checked Checked Checked Checked Disabled
Battery powered Checked Disabled Disabled Checked Disabled Disabled Disabled Disabled
NFC-compatible Checked Checked Disabled Disabled Disabled Disabled Checked Checked
Bitcoin ONLY Checked Checked Checked Disabled Disabled Disabled Checked Disabled
Seed Options
User can increase seed-generation entropy Checked Checked Checked Disabled Disabled Disabled Disabled Disabled
Easy to generate seed with user input Checked Checked Checked Checked Checked Disabled Disabled Checked
Verifiable seed generation Checked Checked Checked Disabled Disabled Disabled Disabled Disabled
BIP-85 seeds Checked Checked Checked Disabled Disabled Disabled Disabled Disabled
Seed XOR integration Checked Checked Checked Disabled Disabled Disabled Disabled Disabled
Temporary seeds Checked Checked Disabled Disabled Disabled Disabled Disabled Disabled
Seed Vault (Multiple Seed Storage) Checked Checked Disabled Disabled Disabled Disabled Disabled Disabled
SeedQR Checked Checked Disabled Disabled Disabled Disabled Disabled Disabled
On-Device Transaction Functions
Show send/receive addresses Checked Checked Checked Checked Checked Checked Disabled Disabled
View QR codes Checked Checked Checked Disabled Checked Disabled Disabled Disabled
Better Bitcoin QR (BBQr) Checked Disabled Disabled Disabled Disabled Disabled Disabled Disabled
NFC Push TX Checked Checked Disabled Disabled Disabled Disabled Disabled Disabled
COLDCARD Co-Signing (CCC) Checked Checked Disabled Disabled Disabled Disabled Disabled Disabled
Custom derivation paths Checked Checked Checked Disabled Disabled Disabled Disabled Checked
BIP-174 (PSBT) Checked Checked Checked Checked Disabled Checked Disabled Disabled
BIP-370 (PSBTv2) Checked Checked Disabled Checked Disabled Disabled Disabled Disabled
BIP-322 (Proof of Reserves) Checked Checked Disabled Disabled Disabled Disabled Disabled Disabled
BIP-341 (Taproot)* Checked Checked Disabled Checked Checked Checked Disabled Disabled
BIP-342 (Tapscript)* Checked Checked Disabled Checked Checked Disabled Disabled Disabled
BIP-379 (Miniscript)* Checked Checked Disabled Checked Disabled Checked Disabled Disabled
Uses libsecp256k1 Checked Checked Checked Checked Checked Checked Checked Partial

* BIP-341 (Taproot), BIP-342 (Tapscript), and Miniscript support is currently only available in the Edge version of the firmware.

Why COLDCARD?#

Other wallets make trade-offs. COLDCARD doesn't.

Ledger uses a closed-source secure element — you trust their code because they tell you to. Trezor has a single secure element and requires a USB connection to sign. BitBox2 is solid but single-vendor secure element and no QR support. Tangem is screenless, depends on its phone app for transaction review, and uses a single non-updatable secure element affected by a published laser fault-injection attack.

COLDCARD has dual secure elements from different vendors (Microchip + Maxim), so your seed is never in one chip from one company. It signs transactions without ever being plugged into anything — microSD, QR codes, or NFC, your choice. Every line of firmware is open source, buildable, and reproducible. No altcoins to widen the attack surface. No companion app phoning home. No cloud account.

Features no other hardware wallet has: duress PIN (decoy wallet under coercion), brick-me PIN (destroy on demand), countdown login (covert time-delay that bricks if tampered), anti-phishing words (verify you're talking to your real COLDCARD), SeedXOR (split your seed across multiple devices), BIP-85 derived wallets, native multisig with air-gapped co-signing, and a spending policy engine that enforces transaction rules in hardware — like an HSM in your pocket.

If you want convenience, buy something else. If you want the hardest possible way to lose your Bitcoin, this is it.

Last update: July 14, 2026