iPhone 6 addressable screen size

Question

The new iPhone 6 has been announced, and there are multiple posts about the number of pixels and the pixels per inch. That's great, but ignores an important question for developers that I don't seem to be finding anywhere.

What's the addressable screen size?

For example, the iPhone 5 has a 4" screen with 1136x640 pixels. Cool. But if I'm programming for it, the addressable screen size is 568x320. If I draw a line from 0,0 to 568,320 (in landscape mode, full seem, of course) it goes across the entire display, not half of it.

The iPhone 6 has two new pixel sizes, 1334x750 and 1920x1080 for the iPhone 6 Plus. Presumably, this means the addressable screen space for programming is 667x375 for the iPhone 6 and 960x540 for the iPhone 6 Plus. Can anyone confirm that?

Also, the simulator now has a variable size setting, but doesn't come preset for the new iPhones. Do you set the simulator to 1334x750 or 567x375 to set layouts for the iPhone 6?

Answer 1

The iPhone 6 has a scale of 2 so the point size is 375 x 667 (not 375 x 567).

The iPhone 6+ actually has a virtual pixel size of 1242 x 2208 with a scale of 3. So the point size is actually 414 x 736.