I m using this device from since april, 2015. the version is of 2 gb model( ze551ml) which cost me around 15000 at that time .it has intel processor at clock speed of 1.8 ghz with 4 cores.
Gpu is of powervr which handle heavy games very well.
Screen size is 5.5 inch ips full hd with ppi of 401. screen looks great. Battery is of 3000 mah of lithiom polymer.
Which lasts for days 1 whith normal usage. camera quality is not that great but good enough .ther are lots of camera mode usingh which u can take different shots. low light is main feature of this camera.which take more brighter image in very low light.but it reduces the camera pixel from 13 mp to 3 mp.
I think ram managment of this phone is not upto the mark. sometimes it gets rebooted automatically.but not so frequent. I feel some hanging problem but this happens not so frequently.i think almost all smartphones have this issue.
It is dual sim phone but on 2nd sim internet connectivity is not there.1st sim supports upto 4g internet connectivity. 1st sim slot has weak network signal reception as compared to 2nd sim slot.
Good things of this phone are as follows: -
Zenui of this phone is buttery smooth. sound quality in headphones is good.but via speaker its not so lound but decent enough. build quality and looks is excellent
Overall, I think its a good phone. I would like to call it a performance phone.