Which external GPS/GLONASS receiver do you recommend (for mountain bike tours) ?
It's for a long distance tour in Caucasus mountains. Should be accurate in case I use offroad trails, lightweight, small, somehow robust and easy to recharge. Maybe also used for mountaineering.
The GPS of my Moto G4 phone is awful.
I use LoMaps maps. If there are more deatiled maps let me know.