Side By Side Comparison of LG K4 and Lava Iris Atom. Compare Processor, display, RAM, Storage and other features here. You can quickly compare LG K4 and Lava Iris 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 LG K4 and . You can also look at each hardware feature individually to perform your analysis while comparing mobile phones.