While the so-called "iPhone 17 Air" is not expected to launch until September, there are already plenty of rumors about the

Apple's new smartphone lineup could feature a redesigned camera bump, a higher refresh rate and a fresh color.

ProMotion displays max out at 120Hz, but they are variable-rate displays, meaning they can back down to slower speeds to save battery life when faster refresh isn’t needed. They can drop all the way down to 1Hz, which is what enables the always-on display of the Pro models.