機種名 縦(mm) 横(mm) 厚さ(mm) Fitbit Versa 38.3 40.1 11.2 Apple Watch Series3 42.5 36.6 13.7 Apple Watch Series4 44.1 37.8 12.9 iPhone 8 138.7 67.2 7.3 iPhone 8 Plus 158.4 77.9 7.9 iPhone XS 143.5 70.9 7.7 iPhone XS Max 157.5 77.4 8.0 Blac…