Rene Ritchie has a great breakdown of the benefits of Apple’s new Smart case over at iMore:
Because of the enormous of amount of attention paid to the visual design of Apple’s new Smart Battery Case for iPhone 6s, a lot about its functional design has been overlooked. Including by yours truly. Though the actual battery inside the case is smaller than many other, similar cases, the “smarts” Apple built into it the battery case means it’s also much more efficient.
While not the prettiest case ever made, it is a lot smarter than any other on the market. Question is, will Apple be willing to open up the same functionality to other case manufacturers to take advantage of?