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I use my iPhone X regularly at contactless terminals at stores and on the bus. The trick is to double click the lock button first, select a card if you want, then hold it by the reader.

I don’t have any problems with FaceID — it’s more reliable and easier than TouchID for me. I live in a rainy place, though. Obviously a YMMV situation.

With TouchID do you just put your finger on the home button and hold it by the reader?

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Interesting, I thought I'd tried that before and it didn't work because it wasn't near a reader. I'll try again, thanks!

I'd argue that it's still a slightly more complicated interaction than with TouchID, though, requiring a bit more mental preparation, perhaps.

As for TouchID: Yes, that's how it works. It's a more fluid action because typically you'll have added your thumb as the fingerprint, and it's easy to hold the phone with your thumb on the home button while holding it near the reader.

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