Nokia Lumia 820 smartphone which is released in November ,2012 with a screen size of 4.3 inches and a resolution of 480 x 800 pixels. It has a primary camera of 8MP and secondary camera of VGA .It has features which includes sensors (Accelerometer, gyro, proximity, compass) and also messaging which includes(SMS (threaded view), MMS, Email, Push Email, IM).It has a micro sim card slot. It is powered by Dual-core 1.5 GHz Krait.