It was always reported that it wouldn’t have a proper face unlock, as it’s simply not for the sensors available to do that. Been well done even before today’s launch
Had a look at what networks the Pixel watch works with, on 4G LTE, for the UK it’s limited to EE & Vodafone
Edit - and now I’m looking at the email from Google about it, I’m trying hard to resist actually pulling the trigger and buying it. Even though further up I made a valid reason not to
It’s probably an esim, given its size… so you’ll be limited to EE and Vodafone anyway - Three did an esim trial but never went live with it. (Edit: And O2, I always forget them, although they currently say samsung only it can’t be that different).
If they do it like the apple watch it’ll be a £7 a month data addon to whatever you pick as the one for the phone. Unfortunately for me that’d be a massive monthly increase, since I’m currently with smarty and currently pay about £5 a month, and the equivalent sim only plan from EE is about £30 a month…