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Coldcard vs Ledger Stax

Comparing
two wallets
Decided by
Editorial rating
Last reviewed
2026-08-26
Coldcard3.4Bitcoin-onlyWarning

Bitcoin-only air-gapped signer whose seed generation was weakened by a build error from March 2021 until fixed firmware landed on July 31, 2026.

Ledger Stax3.6

Ledger's $399 flagship, with the biggest screen it sells and exactly the same secure element as the $59 Nano S Plus.

Verdict: Ledger Stax

Ledger Stax rates higher on our rubric: 3.6 against 3.4 for Coldcard.

Criterion
Editorial rating
Coldcard
3.4
Ledger Stax
3.6

Coldcard and Ledger Stax, fact by fact

Every row is from the two reviews as of their review dates, with sources on each. A check marks the side a decidable criterion favours; rows without one are information, not a score.

Coldcard and Ledger Stax compared fact by fact from their reviews; a check marks the side a decidable criterion favours.
FactColdcardLedger Stax
Editorial rating3.43.6 (favoured on this row)
StatusCaution: see the reviewAvailable
Made byCoinkiteLedger
Price$189$399
Who holds the keysself-custodial, keys held behind two secure elements from different vendors, signing air-gapped by choiceself-custodial, keys held in a CC EAL6+ certified secure element chip
Bitcoin-onlyYesNo
Runs onWindows, macOS, LinuxiOS, Android, Windows, macOS, Linux
ScreenQ: 3.2 inch LCD with a full keyboard. Mk5: bright OLED with a numeric keypad3.7 inch curved E Ink touchscreen, 16 grayscale, 400 x 670 pixels, with an anti-glare coating
ConnectivityUSB-C, microSD, NFC, QR scanner on the Q and a virtual disk mode, every path off by defaultUSB-C, Bluetooth (BLE 5.2) for iOS and Android, NFC, and wireless Qi charging
ReleasedCoinkite has made Coldcard since 2017; the Q and the Mk5 are the current modelsNot stated
Countries on the maker's listNo published list218
Last reviewed2026-08-252026-08-26

Pros and cons, side by side

Coldcard

What works

  • Bitcoin only, which keeps every other chain's parsing code off the device
  • Two secure elements from independent vendors, so one chip flaw is not enough
  • Air-gapped signing over QR, microSD, NFC or virtual disk, with all data paths disabled by default
  • Reproducible open source firmware that advanced users can build and verify themselves
  • Duress PIN, brick PIN and login countdown for coercion scenarios
  • Coinkite's advisory published the technical cause, the entropy estimates and step by step migration instructions

What to watch

  • A March 2021 build error weakened seed generation for over five years, and updating the firmware does not repair an affected seed
  • Migrating means generating a new seed and moving every coin, which costs an on-chain transaction and real care
  • Coinkite publishes no loss total, so the scale rests on outside estimates from TRM Labs and Galaxy Research
  • Steeper learning curve than a Ledger or a Trezor, with no companion app of its own
  • Coinkite publishes no shipping country policy at all

Ledger Stax

What works

  • The 3.7 inch curved E Ink touchscreen is the largest display Ledger sells, so addresses read in one view
  • Same ST33K1M5 secure element, certified to CC EAL6+, as every other current Ledger
  • USB-C, Bluetooth and NFC, plus wireless Qi charging that no other Ledger has
  • Ships with a Ledger Recovery Key and a protective magnet shell included in the box

What to watch

  • At $399 it costs nearly seven times the $59 Nano S Plus for the same certified secure element
  • The $249 Flex has the same chip and more screen pixels, at 480 x 600 against 400 x 670
  • Closed source firmware, unlike Trezor and BitBox

Frequently asked questions

Is Coldcard or Ledger Stax better?

Ledger Stax rates higher on our rubric: 3.6 against 3.4 for Coldcard. The rating follows the product rubric published on our about page; the rows above set custody, price and platforms side by side so you can check it.

Which is cheaper, Coldcard or Ledger Stax?

Coldcard, at $189 against $399, on each maker's own store price as of the review date.

Is Coldcard or Ledger Stax bitcoin-only?

Coldcard is bitcoin-only; Ledger Stax supports other assets too. Bitcoin plus more than 500 assets in the Ledger Wallet app, and thousands more through third party wallets

Does Coldcard or Ledger Stax carry a warning?

Coldcard: A build error introduced in a March 2021 firmware migration left seed generation drawing on a software pseudorandom number generator instead of the hardware one, and attackers found it before Coinkite did. Coinkite published fixed firmware for every affected model and updated its advisory on August 1, 2026, but updating does not repair a seed already generated on affected firmware: those owners have to create a new seed and move their coins.

The full reviews: Coldcard and Ledger Stax, each with its sources, and every wallet we review.

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