Dedicated bike sat navs are weather and vibration proof. A phone needs a vibration damper or you run the risk of breaking it. I have a Zumo XT and a Nav V. On the gs I use the Nav V. Easy to fit and remove, wonder wheel compatible, why wouldn't you?
But, being UKGSer, you'll get loads of different opinions, none of which are completely right or wrong. Your eventual choice will be much the same. Enjoy the new bike.
But, being UKGSer, you'll get loads of different opinions, none of which are completely right or wrong. Your eventual choice will be much the same. Enjoy the new bike.