Model Number : ZC551KL
Processor : Octa Core, 1.5 GHz
Display : 5.5 inches, 1920 x 1080 px 
Memory : 4GB RAM, 32GB inbuilt
Camera : 13 MP Rear + 8 MP Front Camera

Model Number : ZE500KL
Processor : Octa Core, 1.2 GHz
Display : 5  inch, 720 x 1080 px 
Memory : 2GB RAM, 16GB inbuilt
Camera : 13 MP Rear + 5 MP Front Camera

Model Number : ZE601KL 
Processor : Octa Core, 1.7 GHz
Display : 6 inch, 1080 x 1920 px
Memory : 3GB RAM, 32GB inbuilt
Camera : 13 MP Rear + 5 MP Front Camera