Aside from the 38mm and 42mm sizes, there were initially many models of Apple Watch Series 3 and various bands. Today, Apple only sells the 2017 model in black and white variants with Sport Bands.

Older versions, like the Apple Watch Series 3, came in 42mm and 38mm case options. Eventually, Apple decided to boost case size overall and switched to the 44mm and 40mm sizes that the Series 6 used.

It's the first week of 2025, and if you're trying to stay on track with any fitness-related New Year's resolutions there are ...

Apple Watch Series 5 vs. Series 3 ... according to Apple. The 42mm Series 3, by comparison, has a 740 square millimeter display while the 38mm version has a 563 square millimeter screen area.