I think this is not a good phone .i had a friend who buy this phone and used it personaly.
He always complained to me that its camera is not good, battery backupp also not good, and when he plays altra hd videos it was starting to hang, and become switched off.also when he installed a high mb games like asphalt, it became hang.i didnot believe on him, but when I saw his phone, then I realise that he was true.it was not so good.so I adviced him to sell this phone and buy a new phone.