Compared to iPhone 6, it has improved speed everywhere(new processor, faster wireless, quicker Touch ID sensor); a sturdier body; better front and rear cameras; and a bold new 3D Touch pressure-sensitive display which offers new iOS shortcuts. Qualities of iphone 6
A faster quad-core processor(we’re still testing this)
A brighter screen
A better camera(finally with optical image stabilization!)
A water-resistant case
Stereo speakers
Double the storage for the same price
Two additional hours of battery life