Lenovo A Plus ($ 138)

Features:
SensorsAccelerometer  

Specifications:

BuildOSAndroid OS v5.1 (Lollipop)  
Dimensions133 x 66 x 9.9 mm  
Weight146g  
SIMDual-SIM Dual Standby Mini-SIM  
ColorsVarious  
Frequency2G BandSIM1: GSM 850 / 900 / 1800 / 1900<
SIM2: GSM 850 / 900 / 1800 / 1900  
3G BandHSDPA 850 / 900 / 1900 / 2100  
ProcessorCPU1.3 GHz Quad-core Cortex-A7  
ChipsetMediatek MT6580  
GPUMali-400MP2  
DisplayTechnologycapacitive touchscreen 16M colors MUltitouch  
Size4.5 inches  
Resolution854 x 480 pixels  
MemoryBuilt-in8GB built-in  1GB RAM  
CardmicroSD card (support up to 32GB) (dedicated slot)  
CameraMain5 MP autofocus LED flash  
FeaturesGeoTagging Video  
Front2MP Camera  
ConnectivityWLANWi-Fi 802.11 b/g/n hotspot  
Bluetoothv2.1 with A2DP  
GPSYes + A-GPS support  
RadioFM radio  
USBmicroUSB v2.0  
NFCNo  
DataGPRS  EDGE 3G (HSPA 21.1/5.76 Mbps)  
FeaturesSensorsAccelerometer  
Audio3.5mm audio jack  
BrowserHTML5  
MessagingSMS(threaded view) MMS Email Push Mail IM  
GamesBuilt-in  
TorchYes  
ExtraDocument viewer Photo video/editor google Search Maps Gmail YouTube Calendar Google Talk MP3/WAV/eAAC+/FLAC player MP4/H.264 player Google talk  
BatteryCapacity2000 mAh