iPhone 17 Release Date, Specs, Price & Features: What to Expect in 2025 How To Order?
iPhone 17 Battery Leak: eSIM-Only Models Get Extra Power
Apple fans are eagerly counting down to the iPhone 17 launch. Apple’s “Awe Dropping” event on September 9, 2025, will unveil four iPhone 17 models, AirPods Pro 3, and a new lineup of Apple Watch Series 11 and Ultra 3.
Before the event, leaks have revealed some exciting news about battery capacities—especially for eSIM-only iPhones.
iPhone 17 Battery Capacities Leak
Trusted Apple leaker ShrimpApplePro shared the battery capacities for all four iPhone 17 models
Model | Battery Capacity | Change vs iPhone 16 | eSIM Advantage |
| iPhone 17 | 3692mAh | +3.6% | None |
| iPhone 17 Air | 3149mAh / 3036mAh | -48% vs iPhone 16 Plus | +3.7% |
| iPhone 17 Pro | 4252mAh / 3988mAh | +18.6% | +6.6% |
| iPhone 17 Pro Max | 5088mAh / 4823mAh | +8.6% | +5.5% |
What is eSIM and Why It Matters
eSIM is a digital SIM embedded in the iPhone. You don’t need a physical SIM card. On the iPhone 17 Air, Pro, and Pro Max, eSIM allows Apple to fit a slightly bigger battery, giving users around 5% more battery life.
This is a big deal because longer battery life is one of the top reasons people upgrade their iPhones.
iPhone 17 Air: Ultra Slim Design
The iPhone 17 Air is rumored to be only 5.5mm thick, making it Apple’s thinnest iPhone ever. To achieve this sleek design:
- It may be eSIM-only, giving more space for the battery.
- It has a single rear camera in a small pill-shaped bump.
- Comes with a 6.6-inch screen and ProMotion display support.
- Uses the A19 processor like the standard iPhone 17.
- Includes Apple’s own C1 modem, which is energy-efficient, helping battery last longer.
The thinness of the iPhone 17 Air is smaller than the Samsung S25 Edge, which is 5.8mm thick. This slim design makes it very stylish but also means Apple had to get creative with space inside the phone.
Why This Leak is Exciting
- Extra battery capacity across the iPhone 17 lineup.
- eSIM-only models get an additional 3–6% battery life.
- The iPhone 17 Air combines style with a slim, lightweight design.
- Could pave the way for future innovations, like the iPhone Fold in 2026.
Apple is making the iPhone 17 series smarter. If you choose an eSIM-only iPhone 17, you’ll get slightly more battery life, especially on the Pro models. The iPhone 17 Air is incredibly thin at 5.5mm, stylish, and still packs enough battery to keep you going.
For those who value style and battery efficiency, the iPhone 17 Air might be the perfect combination.
