Garmin Vivoactive HR GPS Smartwatch, Black
Done quite a bit of research and believe this is the best fitness tracker (AIO) around this price range.
On JL website it doesn't state the size so assume it is regular. This watch has been slightly cheaper previously but has gone up in price recently.
I have bought this watch for the same price through Very due to a 10% discount offer (KPAJ4 may be account specific) and used the interest free option to soften the blow.