For example, if you have a watch band that fits the 44mm Apple Watch Series 6, it should also fit the 46mm Apple Watch Series 10. However, that band won’t work with the 42mm Series 10 or 41mm ...

Because my Apple Watch is with me all day ... Bands for 38mm, 40mm, and 41mm cases are compatible with each other. Bands for 42mm, 44mm, and 45mm cases are compatible with each other.

A space grey metal clasp is added to the band to match any space grey Apple Watch case. As for sizing, you can buy the Shinola strap in a 38mm/40mm or a 42mm/44mm. It's a premium brand with a ...

so a size 5 for a 40mm case does not work with a 44mm case, and vice versa. There’s a brisk market for Apple Watch adapters, devices that let you attach your old watch band to your new Apple watch.