Oppo K7x vs Oppo A57 comparison

Compare Oppo K7x
Compare Oppo A57
ratings
Overall NDTV Rating-Read Review
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
key specs
Display6.50-inch5.20-inch
ProcessorMediaTek Dimensity 720Qualcomm Snapdragon 435
Front Camera16-megapixel 16-megapixel
Rear Camera48-megapixel + 8-megapixel + 2-megapixel + 2-megapixel 13-megapixel
RAM6GB3GB
Storage128GB32GB
Battery Capacity5000mAh2900mAh
OSAndroid 10Android 6.0
Resolution1080x2400 pixels720x1280 pixels
general
BrandOppoOppo
ModelK7xA57
Release date4th November 2020November 2016
Launched in IndiaNoYes
Form factorTouchscreenTouchscreen
Dimensions (mm)162.20 x 75.10 x 9.10149.10 x 72.90 x 7.65
Weight (g)194.00147.00
Battery capacity (mAh)50002900
Fast chargingProprietary-
ColoursBlack Mirror, Blue ShadowRose Gold, Gold
Removable battery-No
SAR value-1.31
display
Screen size (inches)6.505.20
TouchscreenYesYes
Resolution1080x2400 pixels720x1280 pixels
Protection typeGorilla Glass-
Pixels per inch (PPI)405-
Aspect ratio-16:9
hardware
Processorocta-core1.4GHz octa-core
Processor makeMediaTek Dimensity 720Qualcomm Snapdragon 435
RAM6GB3GB
Internal storage128GB32GB
Expandable storageNoYes
Expandable storage type-microSD
Expandable storage up to (GB)-256
camera
Rear camera48-megapixel (f/1.7) + 8-megapixel (f/2.2) + 2-megapixel (f/2.4) + 2-megapixel (f/2.4)13-megapixel (f/2.2)
Rear autofocusYesPhase detection autofocus
Rear flashYesLED
Front camera16-megapixel (f/2.0)16-megapixel (f/2.0, 1.12-micron)
Pop-Up CameraNo-
Front autofocus-Yes
software
Operating systemAndroid 10Android 6.0
SkinColorOS 7.2ColorOS 3.0
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYes, v 5.00Yes, v 4.10
NFCNoNo
USB OTGYesYes
USB Type-CYes-
Micro-USBNoYes
LightningNo-
Headphones3.5mm3.5mm
Number of SIMs22
Wi-Fi standards supported-802.11 b/g/n
Infrared-No
FM-Yes
Wi-Fi Direct-No
Mobile High-Definition Link (MHL)-No
sim 1
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
5GYes-
sim 2
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
5GYes-
sensors
Fingerprint sensorYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesYes
Compass/ Magnetometer-Yes
Barometer-No
Temperature sensor-No

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