To ensure a perfect fit, please select your band size based on your Apple Watch case size. You can find the case size engraved on the back of your watch.
Size Reference
38mm / 40mm / 41mm are fully compatible with each other
42mm / 44mm / 45mm / 49mm share the same band compatibility
Note for Ultra & Ultra 2 users: Please make sure to select the "42–44–45–49mm" option for full compatibility.
