Apple Watch Ultra 3 regains its title (barely) for the biggest Apple Watch display size.

Juli Clover from MacRumors:

The latest iOS 26 beta includes imagery that confirms Apple's work on a new version of the Apple Watch Ultra, which is set to come out this fall. MacRumors contributor Aaron Perris found an Apple Watch image with a resolution that does not correspond to any current Apple Watch models.

The image suggests that the upcoming Apple Watch Ultra 3 could have a slightly larger display size, with a display resolution of 422 x 514. The current Apple Watch Ultra 2 has a 410 x 502 resolution.

Apple Watch Series 10 in 46mm has a resolution of 416 x 496, making it the current king of displays.

The math doesn’t lie:

Series 10 in 46mm: 416 by 496 pixels; 1220 sq mm display area; 331 PPI

Ultra 2 49mm: 410 by 502 pixels; 1185 sq mm display area; 335 PPI

Ultra 3 (rumored resolution): 422 x 514 pixels; 1246 sq mm display area; 335 PPI

It’s no surprise that Apple Watch Ultra 3 should have the biggest display, and it will if this rumor is true. Not by much, but it’s perfect for the marketing team:

“Ultra Watch, Ultra display. The biggest display ever on Apple Watch, in an all-new 50mm titanium case.”