Oukitel U7 vs U8

Click Here For The Oukitel U7 VS Oukitel U8 phones  face Off
Is The Ouktel U8 Good? Read Review Here

OS And CPU 

U7
CPU: MTK6582
Android 4.4 Kit Kat
1GB Ram
Processor Speed 1.3GHZ
 
U8
CPU: MTK6735 64bit Quad core
Android 5.0
2GB RAM
Processor Speed 1.0GHZ
The  U8'sprocessor is confirmed to be 64 bit which is a requirement for android 5.0 unlike the  inconclusive information for the U7.If the U7's processor is 32 Bit an update to 5.0 will be impossible.

Cameras
U7
Back-camera : 5.0MP (Interpolation To 8.0MP)
Front camera: 0.3MP (Interpolation To 2.0MP)
Flashlight: Yes
Video recording: Yes
Cameras
U8

 Back camera: 13.0MP, with flash light
Front camera: 5.0MP
Flashlight: Yes
Video recording: Yes
U8 has far superior cameras

Sim Cards
U7
SIM Card Slot: Dual Standby, Dual SIM
One Normal and one micro  Sim slot
Networks: 2G 3G

U8
Dual Sim (2 Sim Slots)
One Normal Sim Slot and The other Micro
Networks: 2G  3G 4G


Sensors
U7 Sensor: Gravity Sensor
U8 Sensor: Proximity Sensor, Gravity Sensor
What they Do
Gravity  Sensor is to alert  the  screen to turn horizontally or vertically when the phone is moved.
Proximity sensor tells the  phone how close  it is to objects or the  user so the screen turns of when you put it to your ear saving power.