Too Long; Didn't Read
The new Apple Watch Series 7 with significant changes could come as early as 2021. A future watch band could include an inner frame with multiple slots, each slot configured to house a battery. The idea here is to attach an optical sensor (camera) to the Apple Watch band. Apple is not alone in thinking about utilizing the watch band for energy storage. Google has been researching along the same lines according to a recent patent published this week. Apple would probably not introduce this feature unless it can engineer this at a more affordable price point.