Talking about the features, both the smartphones are loaded with Qualcomm Snapdragon 801 quad-core Processor which is clocked at 2.5 GHz. For a quicker and user friendly interface both the phones has Android 4.4.4 Kitkat Operating System. It enables you to perform multiple tasks smoothly. Both LG & Sony enables the users to expand the memory up to 128 GB through additional microSD card. The battery capacity of the phones are almost similar, LG G3 has a battery back up of 3000 mAh whereas Sony Xperia has 3000 mAh.