I m using this mobile since 2months I did nt notice any issue with it. It comes with 4gb ram which makes this phone a super phone, it nevr gone hang, multitasking experience is awsome on this device, I play mordren combat and ashphalt 8 on this, video editing is also possible on this device, bettry becom full in only 65minute and lust for one and half day, camera is also very decent it takes vry sharp and beatifull images, I can shoot hd video on this for my youtube channel, and dolby speakers are provide very loud and clear music for our ears this is a rockstar for music lovers.