As I’m a tech reviewer on YouTube and I purchase this device last year for?22k and its a best flagship killer smartphone of 2014 because of its specs. we would not get any great specs like this in any other medium budget smartphone. it comes with Android KitKat out of the box and running lollipop 5.1.1 official and still oneplus confirmed that we will get Android marshmallow update for this. if we consider the specs- it has 3gb of ram, 64gb internal, no SD card, single 4g, 13mp-5mp with led flash and huge 3300mah battery. and of the best thing I like that there are no. of custom roms available for this and we can install customise as we want. it is a powerful device. one thing I want to tell you that it has multicolor led notification light and we can customize that with lightflow app which you will find on play store. so I like this great feature. overall it’s worth of its price