iPhone Screen SIzes

iPhone 4S
Screen Size: 3.5 Inches
Resolution: 640 x 960 (Half: 320 x 480)
iPhone 5
Screen Size: 4.0 Inches
Resolution: 640 × 1136 (Half: 320 x 568)
iPhone 5S/5C
Screen Size: 4.0 Inches
Resolution: 640 x 1136 (Half: 320 x 568)
iPhone 6
Screen Size: 4.7 Inches
Resolution: 828 x 1472 (Half: 414 x 736)
Resolution: 750 x 1334 (Half: 375 x 667)
iPhone 6 Plus
Screen Size: 5.5 Inches
Resolution: 906 x 1704 (Half: 453 x 852)
Resolution: 1242 x 2208 (1/3: 414 x 736)
The size of iPhone 6 Plus is @3x scaling. So, it is divided by 3.
So, other than 320 x 480 and 320 x 568, we have to use 375 x 667 and 414 x 736 at the Resizable iPhone Simulator.
After you build and run your project with the Resizable iPhone Simulator, you may set Width as 414, Compact and Height as 736, Regular and remember to click “Apply” like screen shot below:-