Since I own Gear S, this watch on my wrist placed not only take accounting of my heartbeat and movement (not) but keeps me informed of almost all notifications I need. Despite this useful character, it has a battery that does not allow me to cover the two towers of the watch dial (24 hours). However, it offers the possibility to recharge fast enough and goes for a ride when it is necessary to want to watch her sleep. Regarding the integrated GPS, it is often out of reach of the mobile access network (3G), but surely useful in areas served.