Xiaomi Mi 4i ($ 0)

Features:
SensorsAccelerometer, Gyro, Compass, Proximity

Specifications:

BuildOSAndroid OS, v5.0.2 (Lollipop)
UIMIUI 7.0
Dimensions138.1 x 69.6 x 7.8 mm
Weight130 g
SIMDual-SIM, Dual Standby, Micro-SIM
ColorsDark Gray, Black, White, Yellow, Blue, Pink
Frequency2G BandSIM1: GSM 850 / 900 / 1800 / 1900
SIM2: GSM 850 / 900 / 1800 / 1900
3G BandHSDPA 850 / 1900 / 2100
4G BandLTE band 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500)
ProcessorCPU1.7 GHz Octa-Core Cortex-A53
ChipsetQualcomm MSM8939 Snapdragon 615
GPUAdreno 405
DisplayTechnologyIPS LCD capacitive touchscreen, 16M colors, MUltitouch
Size5.0 inches
Resolution1080 x 1920 pixels (~441 ppi pixel density)
ProtectionScratch Resistant Glass
MemoryBuilt-in16GB built-in, 2GB RAM
CardNo
CameraMain13 MP, autofocus, dual-LED (dual tone) flash
Featuresf/2.0, Geo-tagging, touch focus, face/smile detection, panorama, HDR, Video (1080p@30fps, 480p@120fps)
Front5 MP Camera, f/1.8
ConnectivityWLANWi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot
Bluetoothv4.1 with A2DP
GPSYes + A-GPS support & Glonass, BDS
RadioFM radio
USBmicroUSB v2.0, USB Host
NFCNo
InfraredYes
DataGPRS, EDGE, 3G HSPA, 4G (LTE Cat4 150/50 Mbps)
FeaturesSensorsAccelerometer, Gyro, Compass, Proximity
Audio3.5mm audio jack, Speakerphone
BrowserHTML5
MessagingSMS(threaded view), MMS, Email, Push Mail, IM
Gamesbuilt-in + downloadable
TorchYes
ExtraFast battery charging: 40% in 60 min (Quick Charge 2.0), Active noise cancellation with dedicated mic, Photo/video editor, Document viewer, Google Search, Maps, Gmail, Document viewer, XviD/DivX/MP4/H.265 player, MP3/WAV/eAAC+/FLAC player, YouTube, Google Talk
BatteryCapacity3120 mAh