• Display: Retina 5.5 HD display with 3D touch technology
• Memory: 4G LTE advanced with speeds up to twice compare with previous version
• Screen: 5.5 -inch LED-backlit widescreen (diagonal)
• Resolution: Takes brilliant 4K video , and four times resolution of 1080p HD video
• Resolution: 1334 X 750 pixel and 1400:1 contrast ratio typically