Nokia Lumia 520 ($ 0)

Features:
SensorsAccelerometer Proximity  

Specifications:

BuildOSMicrosoft Windows Phone 8  
Dimensions119.9 x 64 x 9.9 mm 75.7 cc  
Weight124 g  
SIMMicro-SIM  
ColorsYellow red cyan white / black  
Frequency2G BandGSM 900 / 1800 / 1900  
3G BandHSDPA 900 / 2100  
ProcessorCPUDual-core 1 GHz  
ChipsetQualcomm MSM8227  
DisplayTechnologyIPS LCD capacitive touchscreen 16M colors Multitouch  
Size4.0 inches  
Resolution480 x 800 pixels  
ProtectionScratch-resistant glass  
MemoryBuilt-in8GB built-in  512 MB RAM  
CardmicroSD card (supports up to 64GB)  
CameraMain5 MP 2592x1936 pixels autofocus  
Features1/4 inches sensor size Geo tagging Video (720p 30fps)  
FrontNo  
ConnectivityWLANWi-Fi 802.11 a/b/g/n dual-band  
Bluetoothv3.0 with A2DP  
GPSYes + A-GPS support & Glonass  
RadioNo  
USBYes  
NFCNo  
DataGPRS Class B  EDGE 3G (HSDPA 21.1 Mbps)  
FeaturesSensorsAccelerometer Proximity  
Audio3.5mm audio jack Speakerphone  
BrowserHTML5  
MessagingSMS (threaded view) MMS Email Push Email IM  
Gamesbuilt-in  
TorchNo  
Extra7GB free SkyDrive storage Active noise cancellation with dedicated mic Document viewer/editor Predictive text input Speakerphone  
BatteryStandbyUp to 360 h  
TalktimeUp to 14 h 40 m  
MusicplayUp to 61 h