Side By Side Comparison of ZTE Nubia Z9 Mini and Lenovo Vibe Z. Compare Processor, display, RAM, Storage and other features here. You can quickly compare ZTE Nubia Z9 Mini and Lenovo Vibe Z smartphones just by looking at their ratings and results showing "winner" and "runner up." There is also a short analysis comparing different features of ZTE Nubia Z9 Mini and . You can also look at each hardware feature individually to perform your analysis while comparing mobile phones.