Side By Side Comparison of ZTE Blade X9 and ZTE Blade V580. Compare Processor, display, RAM, Storage and other features here. You can quickly compare ZTE Blade X9 and ZTE Blade V580 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 Blade X9 and . You can also look at each hardware feature individually to perform your analysis while comparing mobile phones.