If we are talking about zte Nubia N1 then its the best budget phone I ever see. I like its back& front 13mp camera and a great 5000mah battery that makes it epic. But there are some issue. First of all I want to highlight its measure demerit i.e it’s sound quality is bad as highest volume is also low. Ringing volumes grows gradually but till then not every body don’t have enough Patience.Charger heats up after some time of charging. Non removable battery which is not a good think. Its written in product that it has gorilla glass it got scratch in small hit. What’s this? Camera faults- it’s time lapse&slow motion shoot is not so good. Lack service is a major issue. So please increase it.