Apple officially ended the skinny smartphone trend with the iPhone 17 Pro Max. For over a decade, designers have obsessed over shaving fractions of a millimeter off every new device. However, that intense focus on thin metal frames ruined battery life. Apple changed its playbook with the iPhone 17 Pro Max, delivering its thickest flagship phone ever. Customers praised the change because the heavy device held a massive battery. Now, leaks show the upcoming iPhone 18 Pro Max will continue this bulky trend with even bigger camera lenses.
A popular technology reviewer, Max Tech, recently gave fans a close look at the upcoming device. The YouTube creator acquired a physical dummy unit of the iPhone 18 Pro Max. He grabbed his digital measuring calipers and compared the new prototype directly against his own iPhone 17 Pro Max. The final numbers reveal exactly how Apple plans to pack more power into the device without ruining the grip.
The most shocking measurement comes from the phone’s main aluminum-and-glass body. For several months, internet rumor sites claimed Apple would increase the overall thickness of the iPhone 18 Pro Max to fit a much larger battery cell. The digital calipers proved those rumors wrong. The main frame of the new phone measures exactly 8.75 millimeters thick. This number exactly matches the 8.75-millimeter thickness of the older iPhone 17 Pro Max.
This identical body measurement highlights some brilliant engineering work happening behind the scenes at Apple headquarters. The design team clearly found a clever way to rearrange the internal circuit boards. By moving chips and wires around, the engineers created extra physical space to hold a higher-capacity battery cell. They managed to upgrade the power source without inflating the outside metal frame. Users will get extra hours of screen time without carrying a fatter brick in their pockets.
While the main phone body stays the same size, the back glass tells a completely different story. Apple pushes mobile photography to the absolute limit every single year, and those advanced lenses require serious physical space. The first step up from the back glass is the camera plateau. On the new iPhone 18 Pro Max, this plateau measures exactly 11.54 millimeters thick. This represents a 2.76 percent increase over the 11.23 millimeter plateau found on last year’s model.
The actual camera lenses stick out even further past that raised plateau. When you measure the phone from the front glass to the very tip of the camera bump, the numbers get huge. The full camera bump on the iPhone 18 Pro Max reaches exactly 13.78 millimeters. That measurement makes the new camera module roughly 4.95 percent thicker than the 13.13 millimeter bump on the iPhone 17 Pro Max. Anyone who buys this phone will definitely notice this massive camera island when they lay the device flat on a table.
Apple needs this extra physical room on the back of the phone for a very specific reason. The company plans to install much larger camera sensors inside the new flagship model. Bigger sensors capture more natural light, which makes night photos look incredibly bright and sharp. More importantly, the thick camera bump provides enough physical space for a brand-new variable aperture system. This mechanical lens upgrade will allow mobile photographers to physically change how much light enters the camera, giving them professional control over their pictures.
Buyers will also notice a few minor visual tweaks on the front display. Apple finally plans to shrink the black pill-shaped cutout located at the top of the screen. A miniaturized Dynamic Island will give users a tiny bit more usable screen space for watching videos or playing games. Aside from the smaller screen cutout and the thicker camera bump, the iPhone 18 Pro Max’s exterior looks almost identical to its older brother.
The real magic happens deep inside the device’s silicon brain. Apple plans to significantly increase the internal memory to handle heavy software tasks. The entire new smartphone lineup will feature a massive 12 gigabytes of RAM. This extra memory will keep dozens of background apps running smoothly and make video editing feel incredibly fast. Tech fans only need to wait a few more months to see the final product, as Apple plans to reveal the new phones later this year.
