Apple Watch Band Size & Compatibility Guide
Apple Watch Band Size & Compatibility Guide
Choosing an Apple Watch band starts with the case size and the band connection. Apple confirms that compatible band sizes can be shared across several Apple Watch case sizes.
Apple Watch Band Size Compatibility
- 38mm, 40mm and 41mm bands are compatible with each other.
- 42mm, 44mm and 45mm bands are compatible with each other.
- 46mm bands are compatible with 44mm, 45mm and 46mm cases.
- 49mm bands are compatible with 44mm, 45mm and 46mm cases.
- 44mm, 45mm and 46mm bands are compatible with 49mm cases.
Apple Watch Ultra 4 / Ultra 3 / Ultra 2 / Ultra 1
Apple Watch Ultra models use a 49mm case. Apple lists the Ultra 4 at 49mm, and the 49mm Ultra band family remains the key compatibility reference. Always confirm the exact LDFAS product listing and connector design before ordering.