Do 41 mm Apple Watch bands fit a 42 mm Apple Watch?
Yes for the 42 mm Series 10, 11 and 12: Apple said older 41 mm bands fit the new 42 mm case. For the 2015 to 2017 42 mm case (first generation to Series 3), Apple's own pages disagree.
Official page: Apple
What the makers say
- When it launched Series 10 (42 mm and 46 mm), Apple said older bands, including 41 mm and 45 mm sizes, are compatible with the new 42 mm and 46 mm cases, and that new 42 mm and 46 mm bands are compatible with older models.
Official page: Apple
- The Apple Store band guide lists 38 mm, 40 mm, 41 mm and 42 mm bands as compatible with each other, without naming a generation.
Official page: Apple
- Apple Support lists bands for 42 mm, 44 mm and 45 mm cases as compatible with each other. The sentence does not say which 42 mm case (2015 to 2017, or 2024 and later) it means.
Official page: Apple
- Apple Support lists bands for 38 mm, 40 mm and 41 mm cases as compatible with each other.
Official page: Apple
- Apple's Identify your Apple Watch page lists the case sizes of every generation and says to check the engraving on the back of the watch.
Official page: Apple