Screen| E Ink 4.3inches
Resolution| 480*800
Pixel|217dpi
Memory|128MB
Push Button| 1 mechanical key, 3 electrical shock keys
Communication| Bluetooth 4.0
Battery Capacity | 3.7V 460mAh
Weight| 62g
Size| 140.7mm*69.5mm*11.1mm(InkCase 4.1mm)
Compatible| iPhone 7
OS| iOX 7.0 or above