Lenovo Vibe C2 ($ 132)

Features:
SensorsAccelerometer Proximity  

Specifications:

BuildOSAndroid OS v6.0 (Marshmallow)  
Dimensions143 x 71.4 x 8.6 mm  
Weight139g  
SIMDual-SIM Dual Standby Micro-SIM  
ColorsBlack White  
Frequency2G BandSIM1: GSM 900 / 1800 / 1900
SIM2>: GSM 900 / 1800 / 1900  
3G BandHSDPA  
4G BandLTE  
ProcessorCPU1.0 GHz Quad-Core Cortex-A53  
ChipsetMediatek MT6735P  
GPUMali-T720MP2  
DisplayTechnologyIPS capacitive touchscreen 16M colors Multitouch  
Size5.0 inches  
Resolution720 x 1280 pixels (~294 ppi pixel density)  
MemoryBuilt-in8/16GB built-in  1GB RAM  
CardMicroSD Card (support up to 32GB) (dedicated slot)  
CameraMain8 MP autofocus LED flash  
Features1/4" sensor size Geo-tagging touch focus face detection Video  
Front5 MP Camera  
ConnectivityWLANWi-Fi 802.11 b/g/n hotspot  
Bluetoothv4.1 with A2DP LE  
GPSYes + A-GPS support  
RadioFM radio  
USBmicroUSB v2.0  
NFCNo  
DataGPRS  EDGE 3G HSPA 4G (LTE Cat4 150/50 Mbps)  
FeaturesSensorsAccelerometer Proximity  
Audio3.5mm audio jack  
BrowserHTML5  
MessagingSMS(threaded view) MMS Email Push Mail IM  
GamesBuilt-in  
TorchYes  
ExtraOrganizer Document viewer Photo viewer/editor google Search Maps Gmail YouTube Calendar Google Talk MP3/WAV/eAAC+/FLAC player MP4/H.264 player Google talk  
BatteryCapacity2750 mAh