3G 4G WiFi
Operating System: iOS, v6
Display Size: 7.9 inches, 768 x 1024 pixels
3.5 mm Audio Jack

Processor Speed: 1 GHz Processor Type:
RAM: 512 MB
Card Slot
Dual Sim

3G, 21 Mbps Download, 5.76 Mbps Upload 4G WiFi, with wifi-hotspot
Operating System: Android, v4.2.2 (Jelly Bean)
Display Size: 8 inches, 800 x 1280 pixels
3.5 mm Audio Jack

Processor Speed: 1.5 GHz Processor Type:
RAM: 1.5 GB
Card Slot, upto 64 GB
Dual Sim

3G, 21 Mbps Download, 5.76 Mbps Upload 4G WiFi
Operating System: Android, v4.4 (KitKat)
Display Size: 8 inches, 1200 x 1920 pixels
3.5 mm Audio Jack

Processor Speed: 1.86 GHz Processor Type:
RAM: 2 GB
Card Slot, upto 64 GB
Dual Sim