Apple Watch Bands are compatible with all versions of Apple Watch, including Ultra 2, Ultra, Series 10, 9, 8, 7, 6, SE, 5, 4, 3, 2, and 1.
Series 10
42MM = 40/41/42mm
46MM = 44/45/46/49mm
SE
40MM = 40/41/42mm
44MM = 44/45/46/49mm
Ultra & Ultra 2
49MM = 44/45/46/49mm
Series 7, 8, 9
41MM = 40/41/42mm
45MM = 44/45/46/49mm
Series 4, 5, 6
40MM = 40/41/42mm
44MM = 44/45/46/49mm
Series 1, 2, 3
38MM = 40/41/42mm
42MM = 44/45/46/49mm
