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Apple is preparing the heaviest iPhone in recent years, and the increase in weight and size is a deliberate engineering step. A well-known insider under the nickname Ice Universe from the Weibo platform has released new technical details about the upcoming iPhone 18 Pro Max flagship. According to him, the thickness of the device’s body will increase to 8.8 mm compared to 8.75 mm for the current iPhone 17 Pro Max. Although a 0.05 mm adjustment is not a big deal, the internal components that triggered these changes are definitely worthy of market attention.
By itself, such a minimal increase in the body is completely invisible during everyday use, and it is impossible to feel it with the palm of your hand. However, this step clearly indicates a deliberate redistribution of internal space: Apple engineers decided to prioritize battery power and new optical components, refusing to maintain the same dimensions of the iPhone 17 Pro Max. The planned power supply capacity of 5100-5200 mAh demonstrates significant progress compared to last year’s 5088 mAh in the eSIM version, while the 6.9-inch display diagonal and overall body shape will remain unchanged.
Inside the extremely tightly arranged structure of Apple devices, even a minimal expansion of the physical battery capacity requires serious design changes that have a chain reaction on the architecture of the entire internal content. The story of weight increase follows the same logic. It is expected that the total weight of the iPhone 18 Pro Max will exceed 240 g, making it the heaviest mobile device of the brand since the release of the iPhone 14 Pro Max. Going beyond these limits clearly demonstrates that the developers are willing to sacrifice ergonomics and comfort of use to expand the functionality of the gadget.
The thickness adjustment is only an outer shell, while the real sensation is the appearance of a camera with a moving aperture. It has been officially confirmed that the iPhone 18 Pro and Pro Max variants will receive a mechanical shutter adjustment system similar to that used in premium compact cameras. This unit is capable of dynamically changing the size of the hole that transmits light to the sensor. This will give users true depth-of-field control during daytime shooting, more precise exposure control in moments of sudden changes in light levels, and improved light capture in the dark without the limitations of fixed apertures that have accompanied every iPhone camera to date.
Apple is also currently testing four color options for the premium iPhone 18 Pro line: dark cherry with a purple tint, light blue, dark gray, and silver, with the dark cherry shade set to become the main exclusive color of the season.
Regarding the situation with the integration of Face ID sensors under the screen surface and the evolution of the Dynamic Island, Apple was previously expected to significantly reduce the Dynamic Island notch and possibly hide the face recognition elements under the glass in the iPhone 18 Pro. However, a Digital Chat Station insider warned that the company might reuse the production molds from the iPhone 17 Pro in order to minimize financial costs, which would delay the introduction of these updates. Currently, experts agree that the Dynamic Island will be reduced only symbolically, but will not disappear completely, and the more ambitious transition to in-screen Face ID technology will be postponed until the release of the iPhone 19 Pro generation. The rear glass will receive an updated color finish that will perfectly match the shade of the metal base to level the visual difference between the glass panel and the aluminum frame to create a more cohesive look on the back.
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