The smartphone as addressed in the title is a perhaps best smartphone under 15k,

yes I said perhaps as everything is quite good with this smartphone but cellular reception is not,good actually its poor if we move to a place where there is little network the ZUK z1 shows no network,thats dissapointing as my secondary device the lenovo k3note was showing 3points thats all if not it is a great smartphone you can buy one if u live in those parts of the world there is good cellular reception if not stay away from this device.!

and actually I hav even made a review of the device checkout the link for more info.!

https://youtube.com/watch?v=Ndua67lqlu4