Latest android version lollipop 5.1 which makes you up to date, 2g, 3g, 4g network included
1 gb ram and 1 GB quad core processors are enough for regular use, All of the functions of this device working very well, Observed no heating issue
Battery is average but keeps the mobile on up to 6 hours when heavy use,
Fully satisfied with this android 5.1 device compared to Microsoft is device.
Display is average coz of TFT display. But acceptable in 4990 rs. So its must buy opportunity for anyone, who wanting under this budget