A:AnswerI have a 9" wrist and the large band that came with it fits me just fine. If you have an enormous wrist, you can buy band extenders. Good luck.
A:AnswerThe watch uses 'connected GPS' which means it needs to connect to your phone and use the GPS data from the phone.
Unless you want to carry your phone on all your runs, you won't get GPS data.
Also, the watch has difficulty connecting reliably to the phone.
A:AnswerThe versa uses your phones GPS to track runs and bike rides and such, so as long as you have your phone on you while using the versa, and have the location setting turned on you can track your runs. I am not sure about an independent GPS system.