The website Contactless.life is your friend here. Not many have dropped the £30 limit for Apple Pay. BP were rumoured to do so in November but I've not heard anything since I tried to ask some of the staff...UK only: If the merchant truly supports ApplePay (ie, M&S) then any amount should be fine on the watch/phone. If it's regular contactless payment then it's either £20 or £30 depending on if they have updated their firmware since the limit was increased.