Apple’s next-generation flagship is already making headlines months before its expected debut. A fresh leak claims the iPhone 18 Pro could arrive with a noticeably thicker aluminium frame and camera housing compared to the current iPhone 17 Pro, hinting at significant internal hardware upgrades.
The latest information comes from well-known Weibo tipster Fixed Focus Digital, who claims Apple is preparing a thicker chassis instead of pursuing an ultra-slim design. Although Apple has not confirmed these details, the report suggests the extra thickness could accommodate a redesigned camera system and other internal improvements.

Leak Hints at a Thicker Design
According to the latest leak, Apple may increase both the overall body thickness and the rear camera module on its next Pro model.
Aluminium Frame Expected to Stay
The report claims Apple will continue using an aluminium alloy frame for the Pro lineup instead of switching back to titanium. Apple reportedly introduced aluminium on the iPhone 17 Pro because of its improved thermal performance, and the same material could remain part of the company’s premium smartphones.
Up to 2mm Thicker Chassis
The leak suggests the upcoming device could become around 2mm thicker than the current generation. Earlier reports estimate the overall thickness could reach approximately 9.9mm to 10.9mm, compared to 8.75mm on the iPhone 17 Pro.
If accurate, this would be one of the biggest design changes Apple has made to its flagship iPhone in recent years. However, these measurements remain unofficial until Apple confirms the final design.
Why Could Apple Make the Phone Thicker?
The report points to hardware improvements rather than cosmetic changes.
Bigger Camera Hardware
One of the biggest reasons behind the thicker body is believed to be a redesigned rear camera system.
Supply chain reports suggest Apple is working on its first variable-aperture main camera, allowing the lens to adjust how much light enters the sensor. Such a system requires additional internal space and more complex camera hardware.
Improved Heat Management
Another possible reason is thermal performance.
Aluminium conducts heat more efficiently than titanium, helping the phone stay cooler during demanding tasks such as gaming, video recording, and AI processing. Keeping the same material could also improve long-term performance under heavy workloads.
How It Compares With the iPhone 17 Pro
If the rumour proves accurate, buyers can expect a noticeable physical difference between the two generations.
Expected Changes
Compared to the current model, the new flagship may offer the following:
- Thicker aluminium frame
- Larger rear camera housing
- Improved camera hardware
- Better heat dissipation
- Similar flat-edge design language
Apple is not expected to make major changes to the overall appearance, but the extra thickness could make the device feel more substantial in hand.
Other Rumoured Features
Several earlier reports have already hinted at additional upgrades for Apple’s next premium smartphone.
Expected Specifications
Although nothing is official, rumours suggest the device could include:
- A20 Pro chipset built on an advanced process
- Variable-aperture main camera
- Improved AI capabilities
- Enhanced battery life
- iOS 27 out of the box
These features remain speculative and should be treated as rumours until Apple announces the phone.
Expected Launch Timeline
Apple has not announced the next iPhone lineup yet.
Based on the company’s usual schedule, the new Pro models are expected to debut during Apple’s annual September launch event alongside the rest of the iPhone 18 family. More reliable details are likely to emerge through supply chain reports and regulatory leaks in the coming weeks.
Why This Leak Matters
Apple has spent years making its premium smartphones thinner and lighter. If the latest report is accurate, the company may now be prioritising performance over slimness.
A thicker body could create room for a larger camera system, improved cooling, and potentially a bigger battery. While some users may prefer thinner phones, others may welcome the trade-off if it delivers better photography, longer battery life, and improved sustained performance.
Since Apple has not confirmed any of these changes, buyers should treat the information as an early leak rather than final specifications.
Final Thoughts
The latest rumour suggests Apple could take a different approach with its next flagship by making the device noticeably thicker than its predecessor. Instead of focusing solely on aesthetics, the company may use the additional space to introduce meaningful hardware upgrades.
With the expected launch still months away, more leaks will likely reveal whether the thicker aluminium frame becomes one of the biggest design changes in the next generation of iPhones.
FAQs
1. Will the iPhone 18 Pro have a thicker design?
Recent leaks suggest the smartphone could feature a noticeably thicker aluminium frame and camera housing than the iPhone 17 Pro. Apple has not confirmed the claim.
2. Why is Apple reportedly increasing the thickness?
Reports indicate the extra space could accommodate a larger camera system, including a variable-aperture lens, while also improving thermal performance.
3. When is the iPhone 18 Pro expected to launch?
Apple is widely expected to unveil the iPhone 18 series during its traditional September launch event, although the company has not announced an official date yet.