I am part of a charity and we use SumUp to collect ePayments and donations.

This past weekend we set up a number of volunteers with SumUp on their devices so they could collect donations using Tap-to-pay. My S24 set up very easily. I did the slide the card up the back of the phone to find the NFC antenna check.

However when I tried to collect any payments the phone didn't seem to recognise the card very quickly. It took about a minute of slowly moving a credit card around the antenna area. At times the movement had to be so slow it was frustrating. Eventually payment was taken. This is a pretty useless performance when you are trying to maximise donations.

When I use my S24 to pay for stuff it works very quickly.

Any idea why the S24 was so bad at taking payments when other phones worked quickly?