Samsung Galaxy J7 ($ 250)

Features:
SensorsAccelerometer, Proximity

Specifications:

BuildOSAndroid OS, v5.1 (Lollipop), upgradable to 6.0.1 (Marshmallow)
Dimensions152.2 x 78.7 x 7.5 mm
Weight171 g
SIMDual-SIM, Dual Standby, Micro-SIM
ColorsWhite, Black
Frequency2G BandSIM1: GSM 850 / 900 / 1800 / 1900
SIM2: GSM 850 / 900 / 1800 / 1900
3G BandHSDPA 900 / 2100
4G BandLTE band 1(2100), 3(1800), 7(2600)
ProcessorCPU1.2 Ghz Octa Core Cortex-A53
ChipsetExynos 7580 Octa
GPUMali-T720MP2
DisplayTechnologySuper AMOLED Capacitive touchscreen, 16M colors, Multitouch
Size5.5 Inches
Resolution720 x 1280 pixels (~267 ppi pixel density)
MemoryBuilt-in16GB built-in, 1.5GB RAM
CardmicroSD Card, (supports upto 256GB)
CameraMain13 MP, autofocus, LED flash
Featuresf/1.9, 28mm, Geo-tagging, touch focus, face detection, Video 1080p@30fps
Front5.0 MP, f/2.2, 23mm, LED flash
ConnectivityWLANWi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Bluetoothv4.0 with A2DP
GPSYes + A-GPS support & Glonass
RadioFM Radio, RDS, recording
USBmicroUSB v2.0
NFCNo
DataGPRS, EGDE, 3G (HSPA 21.1/5.76 Mbps), 4G (LTE Cat4 150/50 Mbps)
FeaturesSensorsAccelerometer, Proximity
Audio3.5mm audio jack, MP4/WMV/H.264 player, MP3/WAV/WMA/eAAC+/FLAC player, Speakerphone
BrowserHTML5
MessagingSMS(threaded view), MMS, Email, Push Mail, IM
GamesBuilt-in + downloadable
TorchYes
ExtraANT+ support, Active noise cancellation with dedicated mic, Photo/video editor
BatteryCapacity(Li-ion Removable) 3000 mAh
Talktimeup to 18 hrs
Musicplayup to 76 hrs