Rivo Rhythm RX70 ($ 73)

Features:
SensorsAccelerometer, Compass, Proximity

Specifications:

BuildOSAndroid 4.4.2 (Kitkat)
Dimensions135.5 X 67 X 8.9mm
WeightN/a
SIMDual-SIM, Dual Standby
ColorsBlack, Royal blue, Gold, Metallic grey
Frequency2G BandSIM1: GSM 850 / 900/ 1800 / 1900 / 2100
SIM2: GSM 850 / 900/ 1800 / 1900 / 2100
3G BandWCDMA
ProcessorCPU1.3 GHZ Quad-Core
DisplayTechnologyIPS FWVGA capacitive touchscreen
Size4.5 inches
Resolution854 x 480 pixels
MemoryBuilt-in8GB built-in, 1GB RAM
CardmicroSD card (supports up to 32GB)
CameraMain8 MP< Auto Focus, LED Flash
FeaturesVideo
Front2.0 MP Camera
ConnectivityWLANWi-Fi 802.11 b/g/n
BluetoothYes
GPSNo
RadioFM Radio
USBmicroUSB
NFCNo
DataGPRS, EDGE, 3G
FeaturesSensorsAccelerometer, Compass, Proximity
Audio3.5mm audio jack, Speakerphone
BrowserHTML5
MessagingSMS (threaded view), MMS, Email, Push Email
GamesBuilt-in + downloadable
TorchYes
ExtraMaps, Gmail, Youtube, MP4/WMV/H.264/H.263 player, MP3/AAC/WMA/WAV player
BatteryCapacityNon-removable 1650 mAh