A Power switch should appear at the top of the screen labeled slide to power off. Drag the Power icon from the left all the way to the right. Your iPhone 15 Pro or Pro Max should turn off.

Instead, with the iPhone 12 Pro and the other new models, Apple did a full redesign of the form factor--changing up some iPhone design elements that had been in place for more than a half-decade.

That’s because Apple’s largest new iPhone, the iPhone 12 Pro Max, actually offers the biggest iPhone screen ever made. Meanwhile, Samsung’s counterpart device, the Samsung Galaxy S20 Ultra ...