Body Dimensions 42.6 x 36.5 x 11.4 mm (1.68 x 1.44 x 0.45 in) 45.5 x 45.5 x 11 mm (1.79 x 1.79 x 0.43 in) Weight 45.6 g body (1.62 oz) 52 g (46mm), 46.5 g (42mm) (1.66 oz) ...

Platform OS watchOS 3.0, upgradable to watchOS 6.2.8 watchOS 3.0, upgradable to watchOS 6.2.8 ...