Apple watch series 9 vs 10 comparison July 8, 2019 16 32 64 128 Apple watch 9 vs 10 comparison Apple watch series 9 10 comparison Apple watch 9 vs 10 size comparison Apple watch series 8 9 10 comparison Apple watch series 9 vs 10 size comparison Apple watch version 9 Apple watch series 1 vs 8 Apple i watch series 9