iPhone 17 Air leak reveals a slim 5.5mm design, 145g weight, and a 2,800mAh battery. Apple may use high-density battery tech and AI optimization in iOS 19 to enhance battery performance.

Apple’s upcoming iPhone 17 Air has been at the center of fresh leaks, with new details emerging about its battery capacity, weight, and design. The information was shared by a known industry leaker, yeux1122, on the Korean platform Naver, offering a closer look at what to expect from the slimmest model in the iPhone 17 lineup.
Thinner and Lighter than the Competition
According to the leak, the iPhone 17 Air is expected to weigh around 145 grams and measure just 5.5mm thick. This would make it even slimmer and lighter than Samsung’s Galaxy S25 Edge, which has a thickness of 5.8mm and weighs 163 grams. Despite the compact profile, Apple is reportedly focused on maintaining performance without compromising on user experience.
iPhone 17 Air new details 🚨
— Apple Hub (@theapplehub) May 17, 2025
Source: yeux1122 pic.twitter.com/oIINWHTANC
Battery Capacity Draws Attention
The leak suggests that the iPhone 17 Air will come with a 2,800mAh battery, which is notably smaller than the 3,900mAh unit in the Galaxy S25 Edge. For comparison, this puts the Air on par with older models like the iPhone 12 and 12 Pro. While this decision raises concerns about daily battery life, there’s speculation that Apple may be utilizing high-density battery technology, which could increase effective capacity by 15–20% without changing physical dimensions.
Also Read: iPhone 17 Series Leak: Design, Features, Price & Launch Timeline Revealed
Apple’s internal testing reportedly shows that only 60–70% of users might achieve full-day battery life with the current configuration—below the usual 80–90% coverage the company typically aims for.
This is iPhone 17 Air, do you like it? pic.twitter.com/wx92EcEWos
— Majin Bu (@MajinBuOfficial) May 9, 2025
iOS 19 May Introduce AI-Based Battery Optimization
To compensate for the smaller battery, Apple is said to be working on a new AI-powered battery management system, expected to debut with iOS 19. This feature could help optimize power consumption, especially under lighter workloads, helping extend real-world usage times despite the lower capacity.
Also Read: Honor Magic V3: Thinner Than Galaxy S25 Edge, Bigger Battery Inside
Strategy or Sacrifice?
Some rumors suggest Apple may be intentionally limiting battery size to promote accessories like battery cases. However, if the high-density battery option and AI enhancements are implemented effectively, the iPhone 17 Air might still deliver a respectable battery experience.
As for reference, the iPhone 16 and 16 Plus come with larger batteries—3,561mAh and 4,674mAh respectively—indicating that Apple’s decision for the Air model is likely driven by its thin and lightweight design priorities.
Source: yeux1122 via Naver












