I brought Lenovo vibe K5 two months ago for 7000. I needed budget 4g phone at that time. First I have gone through many reviews which were using this phone and I got the positive response.
I have been using this for 2 month but not a single time the phone got stuck. It works so smoothly that I have tried almost every high graphic game in the play store and the phone didnt shown any sign of legging. The snapdragon octacore processer helps it do so.
The Dolby enabled dual speakers gives whole new experience of high quality sound.
As for as the camera is concern I have heard many people complaining about the it but for me the camera is not that bad because Im not selfie addict. Overall the phone is for those who looking for a that can access as many game.