Personally I own a z2 and its really awesome.its camera quality is awesome 20.1 mega pixel cam is absolutely awesome.and I has a lot of awesome features.its completely water proof which is awesome.the head set that they give are not so good but if you buy anyother its really great.and charging, backup is very good ultra power stamina mode and other mode really help a lot there are something like 16 camera effect apps pre installed and there are other apps which are pre installed but not useful at all
im dissappointed that they didnt give change of font but over all it has excellent features and proves worth the money