Amazfit gtr 4 vs mobvoi ticwatch pro 3 ultra specs July 8, 2019 16 32 64 128 Ticwatch pro 3 vs amazfit t rex pro Amazfit gtr 4 vs watch 5 Amazfit gtr 4 vs gts 3 Amazfit gtr 3 pro vs samsung galaxy watch 4 classic Amazfit t-rex pro 2 vs gtr 3 pro