10 Best Dual-Core Smartphones Under 
20,000
6. Sony Xperia U
Price: 
17,399 as seen on FLipkart.com
The smartphone Xperia U from Sony comes with a 3.5 inch LED-backlit LCD capacitive touch screen which supports a resolution of 480 x 854 pixels. The screen also has the Mobile BRAVIA Engine technology which makes the images sharper and clearer. The phone functions on Android 2.3 Gingerbread operating system which can be upgraded to Android 4.0 Ice Cream Sandwich operating system.
The smartphone functions on a 1 GHz Dual Core processor backed by 512 MB of RAM. Xperia U features 5 mega pixel camera with features like geo-tagging, touch focus, face and smile detection, 3D sweep panorama and image stabilization. The phone comes with 4 GB of internal memory but sadly it is missing a slot for a microSD card which means that the phone will have only 4 GB of memory.
