Apple engineers are wrestling with where to put the SIM card, battery, and thermal materials in the rumored iPhone 17 “Slim,” according to The Information. Although US iPhones haven’t had SIM cards for a couple of years now,

The iPhone 17 Slim won't have a SIM card tray because it is too thin to have one, and it probably won't have mmWave either.

Next year’s rumored iPhone 17 Slim could miss out on the telephoto camera lens, which could be a tough pill to swallow if it’s as expensive as rumored.

Although this rumoured phone will be the thinnest iPhone ever, it won't be the thinnest portable device. If you exclude the iPod nano, which is long gone, the slimmest Apple product is the 13-inch M4 iPad Pro. That comes in at a barely-there 5.1mm, which is almost thin enough to cut cheese.

While there have been rumors to the contrary, at least one source still believes that the iPhone 17 Air will be the slimmest iPhone ever.