Retina display iphone 4 vs iphone 5s?

Is the retina display better on iphone 5s than iphone 4?

No - they're the same

http://www.apple.com/...e/compare/

Well, the iPhone 4 has a 960x640 display resolution, while the iPhone 5S has an 1136x640 resolution display. They both have 326 PPI obviously. But I heard the display on the iPhone 5S Has a slightly higher quality display.

The resolution for them are not the same.