Apple Pay is available in the US and the UK, enabling you to pay using your Apple Watch – and the good news is it's mega easy to set up and use.
It's one of the key benefits of the Apple Watch, and at last a tangible feature that people can use and enjoy. But how do you set up Apple Pay and where on Earth can you pay with it?
Essential reading: Ultimate Apple Watch guide
Fear not; if you want to know which stores you can tap and pay with your watch just read our guide.
How to set up Apple Pay on Apple Watch
If you're an Apple Watch and iPhone user, it may surprise you to know that the two devices work independently of each other, when it comes to Apple Pay.
Despite the symbiotic nature of the two devices, they use individual and unlinked Passbook apps, which means you can use two separate cards. It also means you can pay for stuff without your iPhone present, which is great news if you're out for a run, or nipping down to the local shop for some milk.
However, the process is exactly the same.
On the Apple Watch app (on your iPhone) you need to fire up the Passbook and Apple Pay app – there are no updates required. You can then choose to set up Apple Pay and have two options: mirror your iPhone or set up a custom card.
If you want to set up on your iPhone, you do this through the Passbook app on your phone.
Essential reading: Apple Watch tips and tricks
It's crucial to note that 'mirroring your iPhone' means accepting the card that's registered to the App Store. If you set up a different card on your iPhone to your App Store registered one you will need to repeat the process on each device.
If you haven't set up a passcode on the Apple Watch you will be prompted to do this. Apple Pay won't work without it – so that would-be thieves can't make payments from your smartwatch.
Once that's all set up, the process is fairly straightforward. You scan your card using your phone's camera, and update any missing information. Once you finish, you'll be sent an email with a verification code – which you need to enter into the phone app. Once verified, a confirmation that you're ready to go will pop up on the Apple Watch.
How do I use my Apple Watch to pay?
Now you're all set up it's time to start paying.
On the Apple Watch just approach the contactless receiver – be it at a store front counter or a London Underground barrier – and double tap the side button (the one used to summon your contacts).
A picture of your card will appear, and it's ready to go. Just hold your Apple Watch to the card reader and wait a few seconds. The seconds can go mysteriously slowly when you're at the front of the queue, but in a few moments it should be recognised.
For iPhone users, the NFC chip should fire up the Passbook app when it's close to the contactless reader. Just keep your finger – one registered for Touch ID – held to the button and then hold against the reader to make the payment.
Where can I use my Apple Watch to pay?
There's already a very decent contactless payment infrastructure, certainly in the UK, with around 250,000 card machines capable of NFC transactions across the country. As Apple Pay on Apple Watch uses that existing system, all merchants who've already got one installed may already find that people can tap and pay with their smartwatch as soon as the service is switched on in July.
Certainly London Underground has confirmed this to be true (including accepting contactless Apple Watch payments from people from the US at the Oyster gates) and it's likely that the same goes for Tesco, who has made no official announcement about adopting Apple Pay at this point.
So, the bottom line is to expect to be able to do it wherever you normally might be able to with a credit or debit card. Nonetheless, this is the list of stores which have confirmed that they'll be doing Apple Watch contactless payments from the get-go.
How much can I spend with my Apple Watch?
In the US, the contactless payment limit is usually set to $25 though it can vary depending on your bank. The standard contactless limit with an NFC card is £30 in the UK.
Apple Pay through the Apple Watch involves that PIN authorisation when you first put the smartwatch on, and that added safety means that retailers would be free to ditch the contactless limit should they wish to.
Boots in the UK, for example, has confirmed that it will allow payments of any amount using your Apple Watch and we'll probably find that many of the listed retailers begin to follow suit. It will, however, require the merchants to upgrade from the standard NFC equipment which they already have installed.