Apple Watch Stand compatible with: BOTH Sizes 38mm or 42mm of ALL Models of Apple Watch (Apple Watch 1, Apple Watch 2, Apple Watch 3 etc) AND BOTH Sizes (40mm or 44mm) of Apple Watch 4 (2018) & Apple Watch 5 (2019). Apple Watch Series 1, Apple Watch Series 2, Apple Watch Series 3, Apple Watch Series 4, Apple Watch Series 5 - all face sizes including 38mm, 40mm, 42mm, 44mm.