Comment Re:I really don't understand smart watches... (Score 1) 415
As far as I'm aware, the "Sport" version is lighter and stronger than the regular version but that's the extent of the differences. The real answer is "who even knows" since it isn't released yet.
GPS not being in the phone is from the Watch technology page where they explicitly state "Apple Watch uses the GPS and Wiâ'Fi in your iPhone to help measure the distance you travel during activities that canâ(TM)t be measured in steps, such as cycling." As far as I know, the only page that details the difference between the models is the overview page.
Exactly what happens when the watch loses contact with the phone is still anyone's guess.