Apple is set to introduce the ultra-thin iPhone 17 Air, featuring a weight of approximately 145 grams and a battery capacity of 2,800mAh, although potential high-density battery technology could enhance its capacity. Reports regarding battery performance are mixed, with some suggesting it may not last as long as previous models, prompting Apple to consider a battery case accessory. The device is expected to launch in mid-September as part of the iPhone 17 lineup.