Same wrist size, 45 all day. Also have an ultra and that is fine too. Had multiple generations of 40/41 until making the switch and wouldn’t go back.

New S8 have been 200-250 at Target several times over the last couple months. Probably similarly priced now or will be again for BF.

Supposed to but often doesn’t remove it from your account or turn off Find My. I would manually check all of those once you unpair.