Side By Side Comparison of Panasonic P31 and Lava Iris X1 Atom. Compare Processor, display, RAM, Storage and other features here. You can quickly compare Panasonic P31 and Lava Iris X1 Atom smartphones just by looking at their ratings and results showing "winner" and "runner up." There is also a short analysis comparing different features of Panasonic P31 and . You can also look at each hardware feature individually to perform your analysis while comparing mobile phones.