Xiaomi Redmi 4A ($ 138)

Specifications:

Dimensions139.9 x 70.4 x 8.5 mm
Weight140 g
Battery3120 mAh, (Non-removable Li-Ion)
OSAndroid Os 6.0 (Marshmallow)
Memory16GB built-in, 2GB RAM MicroSD card
Processor1.4 GHZ Quad-Core
ConnectivityBluetooth v4.1 with A2DP, USB (microUSB v2.0), Infared port, NFC, WLAN (Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot), GPRS, EDGE, 3G HSPA, 4G LTE
Display Size5.0 Inches, 720 pixels
Sensors: Accelerometer, gyro, proximity, compass
Display ColourIPS capacitive touchscreen, 16M colors, Multitouch
OperatingSIM1: GSM 900 / 1800 / 1900
Frequency / BandSIM2: GSM 900 / 1800 / 1900
3G BandHSDPA 850 / 900 / 1900 / 2100
4G BandLTE
BrowserHTML5
ColorsVarious
EntertainmentFM radio, 3.5mm audio jack, MP4/H.265 player, MP3/WAV/eAAC+/Flac player, YouTube, Google Talk, Games (built-in + downloadable)
Camera13 MP, LED falsh, Auto-Focus, Geo-tagging, Panorama, HDR, Video, 2ndry 5 MP
Other FeaturesGPS + A-GPS support & GLONASS, Dual SIM + Nano-SIM, dual stand-by), Active noise cancellation with dedicated mic, Photo/video editor, Document viewer, Google Search, Maps, Gmail, Document viewer, Speakerphone
Ring TonesDownlaodable, Polyphonic, MP3, WAV
MessagingSMS(threaded view), MMS, Email, Push Mail, IM