Size and resolution of iOS devices

IOS devices are developed by size into phone/touch and pad, each with the following resolution:

1 Size and resolution

Iphone/ipod Touch

Device Name	Resolution	Screen type
IPhone 1/3g/3gs, ITouch 1/2/3	320x480	Normal screen
IPhone 4/4s, ITouch 4	640x960	3:2 Retina Screen
IPhone 5/5s, ITouch 5	640x1136	16:9 Retina Screen

Ipad

Device Name	Resolution	Screen type
IPad 1/2/mini	768x1024	Normal screen
New IPad, IPad 4	1536x2048	Retina screen

2 Development recommendations

In addition to the iphone 5/5s, the normal screen resolution is half the retina screen. This is Apple to make it easy for developers to just develop a set of interfaces and scale them proportionally. The iOS unified point of Use (dot) describes the interface dimensions.

Normal screen 1 dots = 1 pixels

Retina Screen 1 dots = 2 pixels

So, for iphone 1~4s, ITouch 1~4, you just need to develop the screen as an x 480 point. The ipad only needs to be developed based on 768 x 1024 points.

How to deal with iphone 5/5s and other devices?

The screen size of devices such as the IPhone 5/5s and itouch 5 is the same as the width of the x 568, with the length of 88 points being stretched.