I bought my lenovo vibe k5 8 months ago and there so much hanging problem it stucks so many time how ever it have 2 GB of ram I am unsatisfired with the smartphone even now there is another problem coming from it the phone is not vibrating now iss cemera quality is not that good as its 13 megapixle cemera hould have to be the cemera is good for capture objects near to you but not for get the sceneries little far from you .but request you my friends please dont buy the lenovo vibe k5 if you are going to buy this mobile because it have a big problem of hanging and vibration the sound is good because comes with dolby