Been looking for a low cost unlocked andriod for a few days now, from looking at the all reviews out there i think this is the best one for £50, so hopefully this may help others out...
Android 4.2.2 with 1.3GHz MTK6572W, Cortex A7 Dual-core processor and 512MB RAM + 4GB ROM
Support 2G network: GSM 850/900/1800/1900MHz,Support 3G network: WCDMA 850/2100MHz
4.0 inch large 2-point-touch capacitive screen with 800 x 480 pixels screen resolution, 260K Colors
5.0M Pixels High definition back camera with flashlight, front 2.0M camera
E-compass, and supports Android Navigation, built-in GPS navigation with A-GPS assisted, makes the positioning swiftly and accurately ,Supports APK format Android game and applications, such as Bebbled, Angry Birds, What's app, Line