Hi all, I have an iphone 7plus and now I am going to buy an iwatch (42mm). I don't know if the right choice is the series 3 or series 2. One of the feature I am looking at is the possibility to use the iwatch as a navigator while driving my scooter (moto). Do you know if with iWacth2 model is it possible to use the navigator app on the iwatch even without having the iphone in the pocket ? is this possible on iWatch3 ? I don't care about water proof feature. Regarding the performance (responsiveness using the app on the iwatch ) is there a relevant difference between iWatch series 1, series 2 and series3 ? Let's assume that in the future I will stop using iPhone, is it possible to use iWatch series 2 or series 3 without having an iPhone ? (I could use the iPhone of my friend or my wife just for the first setup).