Amazfit gtr 3 oder gtr 4 July 8, 2019 16 32 64 128 Amazfit gtr 3 pro oder gtr 4 Amazfit gtr 4 vs gts 3 Amazfit gtr 4 vs gtr Amazfit gtr 3 vs gts 2 Amazfit gtr 3 pro vs amazfit gtr 3 Amazfit gtr 2 vs 3