I have experience with this mobile 1 year it is realy good phone.The display result of this phone was awesom superb display and knock knock code is easy to use mobile with one hand.the power off/on button was on the back of the mobile its an new design I like it very much.its battery life was too good 1 day full back up but is has a hanging problem when charger plug in to mobile some times its so heat up and hanging problems this is a little bit issue but otherwise tha mobile was really good the display resulation the camera result battery life knock knock code 2 gb ram fastest speed mobile body and design power on/off button on bank side all of tgese features was too good but its display result and colors was excellent I like it very much