Hello.
Welcome to the Three Community.
There's a couple of ways you can do this. You can buy the watch outright, paying it all at once. Or you can select a the watch on a device plan that's 12, 24, or 36 months and choose to pay whatever amount works best up front. Then in the data plan section, you can opt for a rolling 1 month plan. This means you don't have long term contract for the data plan and can cancel if you decide to stick with the Bluetooth option.
Pete.
