The design also received a refresh with softer and more rounded edges and new sizes of 41mm and 45mm. The Apple Watch 7 also includes blood oxygen monitoring, an ECG app, and activity tracking.

The one-body design adds protection around the case and ensures a more secure fit of the watch. The downside of this strap is it only sizes to 45mm Apple Watch case. The counterpoint to this ...

It's important to consider compatibility and case sizing before buying. The Apple Watch Series 9 comes in 45mm or 41mm display options, while the second-gen SE is available in 44mm or 40mm.