Xiaomi Mi 6c ($ 0)

Features:
SensorsAccelerometer, Gyro, Compass, Proximity, FingerPrint

Specifications:

BuildOSAndroid v7.0 Nougat
UIMIUI
WeightN/A
SIMDual Sim, Dual Standby (Nano-SIM)
Frequency2G BandSIM1: GSM 850 / 900 / 1800 / 1900
SIM2: GSM 850 / 900 / 1800 / 1900
3G BandHSPA 850 / 900 / 1900 / 2100
4G BandLTE
ProcessorCPU2.2 Ghz Octa Core
ChipsetSnapdragon 660
GPUAdreno 512
DisplayTechnologyIPS LCD Touchscreen, 16M Colors
Size5.1 Inches
Resolution1080 x 1920 Pixels (~432 PPI)
MemoryBuilt-in64GB Built-in, 6GB RAM
CardmicroSD Card, (supports upto 256GB)
CameraMain13 MP, autofocus, LED flash
Featuresgeo-tagging, touch focus, face/smile detection, panorama, HDR, Video (2160p@30fps, 1080p@30fps, 720p@120fps)
Front8 MP
ConnectivityWLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetoothv4.0 with A2DP
GPSYes + A-GPS support & Glonass
RadioFM Radio
USBmicroUSB
NFCYes
InfraredYes
DataGPRS, Edge, 3G HSPA, 4G LTE
FeaturesSensorsAccelerometer, Gyro, Compass, Proximity, FingerPrint
Audio3.5mm Audio Jack, MP4/DivX/XviD/WMV/H.265 player, MP3/WAV/eAAC+/FLAC player, Speaker Phone
BrowserHTML5
MessagingSMS(threaded view), MMS, Email, Push Mail, IM
GamesBuilt-in + Downloadable
TorchYes
ExtraActive noise cancellation with dedicated mic, Photo/video editor, Document viewer, Google Search, Maps, Gmail, Document viewer
BatteryCapacityNon removable