Lenovo Vibe S1 ($ 189)

Features:
SensorsAccelerometer Compass Proximity  

Specifications:

BuildOSAndroid OS v5.0 (Lollipop)  
Dimensions143.3 x 70.8 x 7.8 mm  
Weight132 g  
SIMDual-SIM  
ColorsPearl White Midnight Blue  
Frequency2G BandSim1: 850 / 900 / 1800 / 1900
Sim2: 850 / 900 / 1800 / 1900  
3G BandHSDPA 850 / 900 / 1900 / 2100  
4G BandLTE band 1(2100) 3(1800) 5(850) 7(2600) 8(900) 20(800) 40(2300)  
ProcessorCPU1.7 GHz Octa-Core Cortex-A53  
ChipsetMediatek MT6752  
DisplayTechnologyIPS capacitive touchscreen 16M colors Multitouch up to 5 fingers  
Size5.0 inches  
Resolution1080 x 1920 pixels (~441 ppi pixel density)  
ProtectionCorning Gorilla Glass 3  
MemoryBuilt-in32GB built-in  3GB RAM  
CardmicroSD card (supports uo to 128GB) (uses SIM 2 slot)  
CameraMain13 MP 4128 x 3096 pixels autofocus dual-LED + dual tone) flash  
FeaturesPhase detection Geo-tagging touch focus face detection HDR panorama Video  
Front8.0 MP Camera  
ConnectivityWLANWi-Fi 802.11 a/b/g/n dual-band WiFi Direct hotspot  
Bluetooth4.0 with A2DP  
GPSYes + A-GPS support  
RadioFM Radio  
USBmicroUSB v2.0  
NFCNo  
DataGPRS  EDGE 3G (HSPA) 4G ( LTE Cat4 150/50 Mbps)  
FeaturesSensorsAccelerometer Compass Proximity  
Audio3.5mm audio jack  
BrowserHTML5  
MessagingSMS(threaded view) MMS Email Push Mail IM  
GamesBuilt-in  
TorchYes  
ExtraDocument viewer Photo viewer/editor Active noise cancellation with dedicated mic MP3/WAV/eAAC+/FLAC player MP4/H.264 player  
BatteryCapacity2420 mAh  
Standbyup to 264 hrs  
Talktimeup to 26 hrs