Xiaomi Redmi 4X ($ 179)

Features:
SensorsAccelerometer, Gyro, Compass, Proximity, FingerPrint

Specifications:

BuildOSAndroid OS, v6.0.1 (Marshmallow)
UIMIUI 8
Dimensions139.2 x 70 x 8.7 mm
Weight150 g
SIMDual-SIM, Dual Standby, Micro/Nano-SIM
ColorsCherry Pink, Champagne Gold, Mate Black
Frequency2G BandSIM1: GSM 850 / 900 / 1800 / 1900
SIM2: GSM 850 / 900 / 1800 / 1900
3G BandHSDPA 850 / 900 / 1900 / 2100
4G BandLTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)
ProcessorCPU1.4 GHz Octa-Core Cortex-A53
ChipsetQualcomm MSM8940 Snapdragon 435
GPUAdreno 505
DisplayTechnologyIPS LCD capacitive touchscreen, 16M colors, Multitouch
Size5.0 inches
Resolution720 x 1280 pixels (~294 PPI pixel density)
MemoryBuilt-in16GB built-in, 2GB RAM, 32GB built-in, 3GB RAM
CardMicroSD card (support up to 256GB) (dedicated slot)
CameraMain13 MP, autofocus, LED flash
Features13 MP, f/2.0, phase detection autofocus, LED flash, Geo-tagging, touch focus, face/smile detection, HDR, panorama, Video (1080p@30fps), 2ndry 5 MP, f/2.2, 1080p
Front5 MP, f/2.2, 1080p
ConnectivityWLANWi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Bluetoothv4.2 with A2DP, LE
GPSYes + A-GPS support & Glonass, BDS
RadioFM radio
USBmicroUSB v2.0
NFCYes
InfraredYes
DataGPRS, EDGE, 3G (HSPA 42.2/5.76 Mbps), 4G (LTE-A (2CA) Cat6 300/100 Mbps)
FeaturesSensorsAccelerometer, Gyro, Compass, Proximity, FingerPrint
Audio3.5mm audio jack, Speakerphone
BrowserHTML5
MessagingSMS(threaded view), MMS, Email, Push Mail, IM
Gamesbuilt-in + downloadable
TorchYes
ExtraActive noise cancellation with dedicated mic, Fast battery charging, Photo/video editor, Document viewer, Google Search, Maps, Gmail, Document viewer, DivX/Xvid/MP4/H.265 player, MP3/WAV/eAAC+/FLAC player, YouTube, Google Talk
BatteryCapacity4100 mAh
Standbyup to 432 hrs
Talktimeup to 36 hrs
Musicplayup to 87 hrs
- Non-removable