The thickness of the iPhone 18 Pro body may be significantly increased, and the upgrade of the main camera will be the biggest factor

According to the news, the aluminum alloy right-angled middle frame that Apple first used on the iPhone 17 Pro will continue to be used on the iPhone 18 Pro, and this material will also be "used on right-angled edge phones for a long time" instead of returning to the previous titanium solution. Citing suspected leaked Apple-related materials from the Tata Group, the source said that the overall body and rear camera platform of the iPhone 18 Pro will be thickened simultaneously. The increase of about 2 mm has been reconfirmed by himself, and described the final thickness data as "a little surprising."

In earlier revelations, "Fix Focus Digital" mentioned that the iPhone 18 Pro will maintain an aluminum alloy body structure and the heat dissipation performance is "really excellent." However, it also reminded users to be cautious about new color matching, because some color matching models of the iPhone 17 Pro have experienced durability issues such as paint peeling and surface chipping. Feedback from the supply chain has also been used to support this statement: the main camera module of the new phone will be upgraded, with a thicker aluminum alloy back cover, and the thickness will also increase by about 2 mm.

Regarding the specific thickness, "Fix Focus Digital" gave a clearer range in a report on July 4: the thickness of the iPhone 18 Pro series is expected to fall between 9.9 and 10.9 mm. This means that the iPhone 18 Pro series will feel significantly thicker in hand than the 8.75mm thick iPhone 17 Pro / 17 Pro Max. A batch of iPhone 18 Pro Max models previously exposed in April also hinted that the thickness of the rear camera platform would increase from 11.23 mm to about 11.54 mm, echoing the latest revelations.

The increase in thickness is believed to be closely related to the new main camera system. According to multiple sources, the iPhone 18 Pro will introduce a variable aperture main camera for the first time in the iPhone product line. The cost of this component is said to be about 50% higher than the current fixed aperture solution. Mass production of new modules has been accelerated at suppliers such as LG Innotek and Sunny Optical in preparation for the fall release window.

In addition to camera upgrades, the body design and material selection of the iPhone 18 Pro series have also become the focus of attention. Aluminum alloy continues to be the mainstream option for Apple's right-angle mid-frame due to its heat dissipation performance and weight control advantages. However, the coating durability issues exposed on the 17 Pro have been repeatedly cited by whistleblowers, who believe that users need to pay attention to the potential risks of paint peeling and surface damage when purchasing new colors. However, there is currently no sign that Apple will change the material or completely change the appearance style on the 18 Pro. The main changes are still focused on the thickness and camera system.

In terms of product rhythm, iPhone 18 Pro and iPhone 18 Pro Max are expected to be unveiled together with Apple's first foldable screen iPhone in September this year, continuing the strategy of launching flagships and new devices on the same stage every autumn. In terms of price, multiple Chinese whistleblowers have previously hinted that the iPhone 18 Pro series and folding iPhones will face varying degrees of price increase pressure, and the positioning of the new generation Pro models is expected to move closer to high-end flagships.