the option to pair with an external gps would be better all round, apart from having a separate thing to carry. i have a garmin glo 2 that i pair to my android

the option to pair with an external gps would be better all round, apart from having a separate thing to carry. i have a garmin glo 2 that i pair to my android when doing openstreetmap stuff, and its something that you would barely notice in your pocket or clipped onto a backpack