Apple appears willing to accept a thicker iPhone 18 Pro Max if the trade-off means a more capable camera system. Recent dummy-unit measurements suggest the biggest change is concentrated at the rear camera area, where the device is said to grow more noticeably than in the rest of the body.
The information comes from tech YouTuber Vadir Yuryev on the Max Tech channel, who shared comparisons based on an iPhone 18 Pro Max dummy unit. The measurements show that Apple may be shifting priorities away from a slimmer profile and toward a camera setup that needs more internal room.
A larger camera section, not a fully thicker phone
The most visible change is said to be the camera bump. According to the measurements shared, the total thickness on the camera side rises from 12.92 mm to 13.77 mm.
The camera plateau also changes slightly, moving from 11.23 mm to 11.54 mm. Even so, the main body of the device is still reported to stay around 8.75 mm if the camera protrusion is not included.
That detail matters because it suggests Apple is not making the entire phone bulkier. Instead, the extra size seems focused on the module that houses the camera hardware.
Yuryev said the lens and camera module look more pronounced on the dummy iPhone 18 Pro Max. The comparison points to a design choice that favors function over a thinner exterior.
Why Apple may need the extra space
The reported size increase appears to line up with a new camera direction for the device. One of the most discussed possibilities is a variable aperture lens, a feature that would allow the camera to adjust its opening depending on lighting conditions.
Such a system can help improve photo quality in both low light and bright environments. If that rumor proves accurate, a larger camera housing would make sense because the internal components may require more space.
In that context, the iPhone 18 Pro Max looks positioned as a model that prioritizes imaging capability. The device does not appear to be chasing the thinnest possible frame if that limits camera performance.
A familiar shape with a different priority
From a visual standpoint, the changes are not expected to make the phone look radically different at first glance. The overall form is still said to remain close to previous Pro Max models.
The difference is more about how Apple is allocating space. Premium phones often need extra room for more advanced camera systems, and the reported measurements suggest Apple may be leaning further in that direction.
That approach also signals a broader shift in priorities. Instead of placing the strongest emphasis on slimness, Apple may be giving more weight to practical performance, especially in photography.
For many users, that trade-off may be acceptable if it leads to better image quality. The camera has long been one of the main reasons buyers choose a high-end iPhone, and any change that improves that area can outweigh a slightly thicker rear profile.
Another device in the same leak
Yuryev also showed a dummy device that is said to be the iPhone Ultra, which is believed to be Apple’s first foldable iPhone. He compared it with the iPad mini to give a sense of screen size and proportions.
According to his description, the iPhone Ultra has very thin bezels and a display that, when unfolded, is close to the iPad mini in size. He also said the device feels comfortable to hold, including for gaming such as Call of Duty.
He added that the display on the iPhone Ultra is up to 56.9 percent taller than the iPhone 17 Pro Max in a certain position. Other leaks have suggested the foldable device may support two apps on one screen at the same time.
Although the foldable model was once rumored to face delays, the latest reports indicate its launch schedule may not be far from the iPhone 18 series. That has turned attention toward both devices at once: the thicker iPhone 18 Pro Max built around a stronger camera setup, and the iPhone Ultra, which is beginning to take shape in public leaks.