HTC One A9 vs Samsung Galaxy A8 vs Samsung Galaxy J7 comparison

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ratings
Overall NDTV Rating--
Design Rating--
Display Rating--
Software Rating--
Performance Rating--
Battery Life Rating--
Camera Rating--
Value for Money Rating--
general
Release dateDecember 2015July 2015June 2015-
Form factorTouchscreenTouchscreenTouchscreen-
Dimensions (mm)145.80 x 70.80 x 7.30158.00 x 76.80 x 5.90152.40 x 78.60 x 7.50-
Weight (g)143.00151.00171.00-
Battery capacity (mAh)215030503000-
Removable batteryNoNoYes-
ColoursCarbon Grey, Opal Silver, Topaz Gold, Deep GarnetBlack, White, GoldBlack, White, Gold-
SAR value0.800.10--
Alternate names-SM-A800F--
Launched in India--Yes-
Body type--Plastic-
display
Screen size (inches)5.005.705.50-
TouchscreenYesYesYes-
Resolution1080x1920 pixels1080x1920 pixels720x1280 pixels-
Pixels per inch (PPI)441386--
Aspect ratio--16:9-
hardware
Processor1.2GHz octa-core1.8GHz octa-core1.5GHz octa-core-
Processor makeQualcomm Snapdragon 617Exynos 5430Samsung Exynos 7580-
RAM3GB2GB1.5GB-
Internal storage32GB32GB16GB-
Expandable storageYesYesYes-
Expandable storage typemicroSDmicroSDmicroSD-
Expandable storage up to (GB)2000128128-
camera
Rear camera13-megapixel16-megapixel13-megapixel (f/1.9)-
Rear flashDual LEDLEDLED-
Front camera4-Ultrapixel5-megapixel5-megapixel (f/2.2)-
Rear autofocus--Yes-
Front flash--LED-
software
Operating systemAndroid 6.0Android 5.1.1Android 5.1-
SkinSense 7.0_gTouchWiz UITouchWiz UI-
connectivity
Wi-FiYesYesYes-
Wi-Fi standards supported802.11 a/b/g/n/ac802.11 a/b/g/n/ac802.11 b/g/n-
GPSYesYesYes-
BluetoothYes, v 4.10Yes, v 4.10Yes, v 4.10-
NFCYesNoNo-
InfraredNoNoNo-
USB OTGYesYesYes-
Headphones3.5mm3.5mm3.5mm-
FMYesYesYes-
Number of SIMs122-
Micro-USB--Yes-
sim 1
SIM TypeNano-SIMNano-SIMMicro-SIM-
GSM/CDMAGSMGSM + CDMAGSM-
3GYesYesYes-
4G/ LTEYesYesYes-
sensors
Compass/ MagnetometerYesYesNo-
Proximity sensorYesYesYes-
AccelerometerYesYesYes-
Ambient light sensorYesYesNo-
GyroscopeYesNoNo-
BarometerYesNoNo-
Temperature sensorNoNoNo-
sim 2
SIM Type-Nano-SIMMicro-SIM-
GSM/CDMA-GSM + CDMAGSM-
3G-YesYes-
4G/ LTE-YesNo-