Oppo A57 vs Karbonn A4 comparison

Compare Oppo A57
Compare Karbonn A4
ratings
Overall NDTV RatingRead Review-
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
key specs
Display5.20-inch4.00-inch
ProcessorQualcomm Snapdragon 4351GHz one-core
Front Camera16-megapixel 0.3-megapixel
Rear Camera13-megapixel 3.2-megapixel
RAM3GB256MB
Storage32GB512MB
Battery Capacity2900mAh1400mAh
OSAndroid 6.0Android
Resolution720x1280 pixels320x480 pixels
general
BrandOppoKarbonn
ModelA57A4
Release dateNovember 2016March 2013
Launched in IndiaYes-
Form factorTouchscreen-
Dimensions (mm)149.10 x 72.90 x 7.65124.80 x 66.00 x 9.50
Weight (g)147.0075.00
Battery capacity (mAh)29001400
Removable batteryNoYes
ColoursRose Gold, Gold-
SAR value1.31-
display
Screen size (inches)5.204.00
TouchscreenYesYes
Resolution720x1280 pixels320x480 pixels
Aspect ratio16:9-
hardware
Processor1.4GHz octa-core1GHz one-core
Processor makeQualcomm Snapdragon 435-
RAM3GB256MB
Internal storage32GB512MB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)25632
camera
Rear camera13-megapixel (f/2.2)3.2-megapixel
Rear autofocusPhase detection autofocus-
Rear flashLEDNo
Front camera16-megapixel (f/2.0, 1.12-micron)0.3-megapixel
Front autofocusYes-
software
Operating systemAndroid 6.0Android
SkinColorOS 3.0-
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 b/g/n-
GPSYesNo
BluetoothYes, v 4.10Yes
NFCNoNo
InfraredNoNo
USB OTGYesNo
Micro-USBYes-
Headphones3.5mm-
FMYesNo
Number of SIMs22
Wi-Fi DirectNoNo
Mobile High-Definition Link (MHL)NoNo
sim 1
SIM TypeNano-SIMRegular
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesNo
sim 2
SIM TypeNano-SIMRegular
GSM/CDMAGSMGSM
3GYesNo
4G/ LTEYesNo
sensors
Fingerprint sensorYes-
Compass/ MagnetometerYesNo
Proximity sensorYesNo
AccelerometerYesNo
Ambient light sensorYesNo
GyroscopeYesNo
BarometerNoNo
Temperature sensorNoNo

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