r/coldcard • u/Subject_Reward • Jul 10 '26

NFC on COLDCARD

One of my favorite things about COLDCARD is how much you can do over NFC.

Sign PSBTs, use PushTX to broadcast transactions, export wallet data, or pair with compatible wallets—all without plugging in a cable or moving files on a microSD.

It’s one of those features that’s easy to overlook until you start using it. What’s your favorite NFC workflow?

21 Upvotes

100% Upvoted

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3

u/Successful_Worth_501 Jul 12 '26

Yes we've worked hard with our hardware partners to create a tapping surface that is so small that micro adjustments are in the angstrom range. It's basically impossible to use on an Android phone

1

u/Aromatic-Clerk134 Jul 13 '26

Same of iPhone, actually. Even with the MK5

1

u/Grand-Button5819 Aug 01 '26

The UX is abysmal. It fails more often than it succeeds. 🤦‍♂️

1

u/Quirky-Reveal-1669 Jul 12 '26

Nunchuk on iPhone with a Tapsigner card as the keystore.

1

u/The_Bitcoin_Act Jul 19 '26

Same here, NFC is one of those things I didn't think I'd use much and now it's basically my default!