Amazfit gtr 4 vs vivoactive 5 July 8, 2019 16 32 64 128 Amazfit gtr 4 vs garmin vivoactive 5 Amazfit gtr 4 vs watch 5 Amazfit gtr 4 vs gtr Amazfit gtr 4 pro vs samsung watch 5 pro Amazfit gtr 4 vs apple watch 5 Amazfit t rex 2 vs garmin vivoactive 4