Zuk z1 which I bought for the first sales, as I bought at first its looking is as like as iphone 6s from the front side its metal coating , camera quality absolutely awesome we can dslr feelimg of quaity of the pic taken from zuk z1 cam , finishing from the back as its is non removalble battery type as we know battery cannot be removed , recently my latest zuk z1 had slipped from 1st floor and broken into pieces , I really thought its completely damaged and cant be repaired but its coating and back side dome only get out from its prositions and set them in fix now its working but some finishing only getting bad , as we saw in review videos they told although its not water proof resistant but acts like so beacuse of its arrangement of metal coating , but after its fall from the first floor its lost ita nature of proofing , and so many pepeole complained its getting hanging when recently bought but its a small seeting to be done by everyone to set it right, go to settings and select reset app prefernces by doing so unwanted apps get reset and u r phone gets rid from hanging and its acts as a new one .
But so many of minds thinking zuk z1 is a faliure no its not complete in just some phones only its happend and iam happy with my zuk z1