Not only did it release the thinnest iPhone ever, the 5.6-millimeter iPhone Air, but it also unveiled an accessory that only works with that device. I'm talking about the iPhone Air MagSafe Battery, sold separately from the iPhone Air itself for $99. Unlike the older MagSafe Battery Pack, which worked with the iPhone 12, 13, and 14 lineups before being discontinued in 2023, the new version only works with the iPhone Air. Reports say this is probably due to the iPhone 17 and iPhone 17 Pro designs, which feature larger and differently positioned camera bumps that prevent the battery accessory from attaching. Apple says the device still offers "all-day battery life," but introduced this Air-exclusive MagSafe battery bank nonetheless.