Apple Watch return

[Klw90]

I purchased the Apple Watch SE and have opened to set up. I realised this one doesn't have the ecg and would like to swap for a different model. Even though it's been opened and set up will I be able to return this?

[caesarome]

You have 31 days under the cooling off rules to change your mind so you will need to call Sky about this, 150 is the number to call them on.