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Coldcard vs SafePal S1

Comparing
two wallets
Decided by
Editorial rating
Last reviewed
2026-08-25
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.

SafePal S13.5

Budget air-gapped signer with no USB data, WiFi, Bluetooth or NFC: every transaction crosses as a scanned QR code.

Verdict: SafePal S1

SafePal S1 rates higher on our rubric: 3.5 against 3.4 for Coldcard.

Criterion
Editorial rating
Coldcard
3.4
SafePal S1
3.5

Coldcard and SafePal S1, 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 SafePal S1 compared fact by fact from their reviews; a check marks the side a decidable criterion favours.
FactColdcardSafePal S1
Editorial rating3.43.5 (favoured on this row)
StatusCaution: see the reviewAvailable
Made byCoinkiteSafePal
Price$189Not published
Who holds the keysself-custodial, keys held behind two secure elements from different vendors, signing air-gapped by choiceself-custodial, keys held offline on a device with no USB data, WiFi, Bluetooth or NFC connection
Bitcoin-onlyYesNo
Runs onWindows, macOS, LinuxiOS, Android
ScreenQ: 3.2 inch LCD with a full keyboard. Mk5: bright OLED with a numeric keypadSmall color screen with a camera for reading QR codes
ConnectivityUSB-C, microSD, NFC, QR scanner on the Q and a virtual disk mode, every path off by defaultQR codes only: no USB data, WiFi, Bluetooth or NFC
ReleasedCoinkite has made Coldcard since 2017; the Q and the Mk5 are the current modelsNot stated
Countries on the maker's listNo published listNo published list
Last reviewed2026-08-252026-08-25

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

SafePal S1

What works

  • No USB data, WiFi, Bluetooth or NFC: the only channel in or out is a QR code on a camera
  • SafePal's budget cold storage line, positioned below the newer Bluetooth X1
  • Broad asset support with swap, buy and DeFi features for people who hold more than bitcoin
  • SafePal accepted an outside security report from Kraken Security Labs and shipped a fix

What to watch

  • Not bitcoin-only, and the companion app is a broad crypto app rather than a focused signer
  • The February 2021 Kraken disclosure showed the firmware update check could be downgraded without the user noticing
  • Verification happens on a small screen, which makes careful address checking slower
  • SafePal publishes no shipping country policy, pointing at a reseller network instead

Frequently asked questions

Is Coldcard or SafePal S1 better?

SafePal S1 rates higher on our rubric: 3.5 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.

Is Coldcard or SafePal S1 bitcoin-only?

Coldcard is bitcoin-only; SafePal S1 supports other assets too. Multi-asset: bitcoin among a long list of chains and tokens, managed through the SafePal app

Does Coldcard or SafePal S1 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 SafePal S1, each with its sources, and every wallet we review.

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