New details have surfaced regarding the upcoming iPhone 18 Pro Max. Several well-known leakers are reporting changes to the case thickness, weight, and battery capacity. According to these reports, the smartphone could be slightly thicker and heavier than its predecessor. At the same time, there are indications of a larger battery and some other technical improvements.
The information comes from well-known leakers on the Weibo platform, including Ice Universe, Instant Digital, and Digital Chat Station. These sources regularly publish hints about upcoming smartphones and have frequently been correct in the past. However, the current information has not yet been officially confirmed.
The iPhone 18 Pro Max is expected to be slightly thicker
According to Ice Universe, the iPhone 18 Pro Max will have a case thickness of 8.8 mm. That would be slightly more than the iPhone 17 Pro Max, which is 8.75 mm thick.
The difference is small, but it suggests that Apple may be including new hardware inside.
Weight could be over 240 grams
Back in November, leaker Instant Digital reported that the iPhone 18 Pro Max's casing would be slightly thicker than its predecessor. This could also increase the weight.
According to this report, the smartphone could weigh over 240 grams. If confirmed, it would be the heaviest iPhone since the iPhone 14 Pro Max.
Larger battery possible
One possible reason for the thicker casing is a larger battery. According to Digital Chat Station, the iPhone 18 Pro Max could have a battery capacity of 5,100 to 5,200 mAh.
For comparison: The eSIM version of the iPhone 17 Pro Max has a battery with 5,088 mAh.
A slightly larger battery could lead to improved battery life.
Display size will probably remain the same
No changes are currently expected regarding the display. The iPhone 18 Pro Max is expected to continue to feature a 6.9-inch display, the same screen size as the current model.
Further possible innovations
In addition to the changes to the casing and battery, further improvements are expected. These include:
- a new C2 modem
- simplified camera control
- an improved main camera with variable aperture
The iPhone 18 Pro Max and the iPhone 18 Pro are expected to be unveiled later this year.
iPhone 18 Pro Max: First hints of design and hardware changes
Recent leaks suggest that the iPhone 18 Pro Max will be slightly thicker and possibly heavier than its predecessor. At the same time, Apple might include a slightly larger battery, while the 6.9-inch display remains unchanged.
Improvements to the camera and modem are also expected. Whether this information is confirmed will only be revealed at the official unveiling of the new iPhone generation in September. (Image: Shutterstock / Stockinq)
- Apple Home Hub: Leak reveals watchOS interface & MagSafe
- iPhone Fold: Apple's initial plan was completely different
- Apple TV 4K and HomePod are apparently waiting for a new Siri
- Apple plans Smart Home Hub with new Siri in the Fall
- Apple has reportedly already finished designing the iPhone 18e
- iPhone Fold: CAD files reveal possible Design
- MacBook Neo 2: Will Apple's affordable Mac come with touchscreen?
- Apple will rely on 3D-printed aluminum in the future
- Mac Studio: M5 upgrade could arrive at WWDC 2026
- iMac: Apple plans new colors for the next update
- Apple HomePad: New information on features and launch
- MacBook Pro: Major upgrade planned with OLED and touchscreen
- Apple could unveil three Ultra devices in 2026
- Apple Home Hub: New indications of a fall 2026 launch
- Apple outsources Siri: AI servers remain unused
- MacBook Air will get an OLED display for the first time in 2028
- WWDC 2026: Apple replaces Core ML with Core AI in iOS 27
- iPad Pro 2027 brings internal technology upgrade
- iPad Fold: Huge display, uncertain future
- MacBook in price focus: Apple targets upgraders
- Studio Display 2: New details about the upgrade
- Apple March 2026 Announcements: Focus on New Chips
- Apple plans to launch Apple Pay in India
