Amazfit gtr 4 vs garmin vivoactive 4 July 8, 2019 16 32 64 128 Gtr 4 vs garmin Amazfit t rex 2 vs garmin vivoactive 4 Amazfit gtr 4 vs watch 5 Amazfit gts 4 vs garmin venu 2 Amazfit gtr 4 vs gtr