Amazfit t rex 2 vs amazfit gtr 4 specs July 8, 2019 16 32 64 128 Amazfit t-rex pro 2 vs gtr 3 pro Amazfit gtr 2 vs 3 Amazfit gtr 2 vs gtr 2 e Amazfit gtr 3 vs gts 2 Amazfit gtr 2 vs gtr 3 vs gtr 3 pro