Both phones has almost same specs, they had got 3.5 inch touch screen with screen resolution of 320×480 pixels. Its powered by 1 GHz Single Core Qualcomm MSM7227A Snapdragon processors along with 512 MB of RAM and Adreno 200 GPUs.
At back it has 3.2 MP camera and a VGA camera at front, It comes with 4 GB of internal memory and a microSD card for expanding memory upto 32GB. It has 1530 mAh battery which provides 6.3 hours, and a stand-by time of up to 530 hours.
Diference in both phone is that Xperia E Dual is a dual SIM phone and Xperia E comes with Android 4.1 and Xperia E Dual has Android 4.0.