Apple is reportedly preparing to launch its thinnest iPhone yet, the iPhone 17 Air, but the sleek design may come at the cost of battery capacity. Leaks from Chinese sources suggest the device will ship with a 2,800 mAh battery, noticeably smaller than the iPhone 16 lineup, which ranged from 3,561 mAh to 4,685 mAh.
The Air’s slim profile, said to measure just 5.5 mm, makes it one of the most portable iPhones Apple has ever produced. However, this design choice raises concerns about whether it can deliver enough endurance for everyday users.
iOS 26 to Help Balance Performance
To counter the reduced battery size, Apple is expected to lean heavily on iOS 26’s Adaptive Power Mode. This feature automatically manages performance and background activity to stretch battery life throughout the day.
Internal tests suggest mixed outcomes. While Apple claims most users will experience full-day use, reports indicate only 60% to 70% of testers achieved that benchmark, compared to the 80% to 90% success rate seen in current models.
Possible Return of Battery Accessories
To support power-hungry users, Apple is rumored to be considering a comeback for its battery accessories. Options like a redesigned battery case or a new MagSafe pack could offer extended usage without compromising the phone’s ultra-thin design.
Launch Timeline and Market Position
The iPhone 17 Air is expected to debut in September 2025 alongside the standard and Pro versions. Positioned between the two in price and hardware, it will share select Pro-level components while prioritizing its slim form factor as the main selling point.
Although software improvements promise better efficiency, users who rely on heavy apps, gaming, or extensive photography may need to wait for real-world reviews—or consider add-on accessories—before committing to the upgrade.