I had zuk z1 before 2 months.i choose mobile because of good specificications & lenovo brand but I was wrong.phone comes with 5.5 full hd ips display although brightness of display is good but adeptive light sensor is take time to atjust brighness when you will go from indoor to direct sunlight then you have to atjust brightness manually.other issue of the phone is phone dose not have infrared sensor.buit quality is good but back is made of plastic . I have also faced fingerprint issue for this phone. after 2 months of puchesing my fingerprint scanner stoped working.back button was also not working properly.& Biggest issue about this mobile is absence of volte . you can’t call by jio sim without turning on internet connection.zuk/ lenovo didn’t provide any update for this.& Lastly soc 801 is outdated.