So I followed the instructions and measured my wrist. Got my size. Then realized my wrist was compressed from where I wear the watch. Took it off to update. Let my wrist settle. Totally different size. Wonder if they are going to let people exchange sizes easily. This is going to be fun.
Exactly the same happened to me. Going through the online order was stressful. I used sellotape and measured it first (it was the only thing I could find!) 😆
It said I was a size 4, but when printing out their guide I'm a size 10.
Apple are going to get a LOT of delivery returns for these.