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OPPO K13 5G vs Vivo V21 5G comparison

 Compare OPPO K13 5G
OPPO K13 5G
Compare Vivo V21 5G
Vivo V21 5G
key specs
Display6.70-inch6.44-inch
ProcessorQualcomm Snapdragon 6 Gen 4MediaTek Dimensity 800U
Front Camera16-megapixel 44-megapixel
Rear Camera50-megapixel + 2-megapixel64-megapixel + 8-megapixel + 2-megapixel
RAM8GB8GB
Storage128GB, 256GB128GB, 256GB
Battery Capacity7000mAh4000mAh
OSAndroid 15Android 11
Resolution1080x2400 pixels1080x2404 pixels
general
BrandOPPOVivo
ModelK13 5GV21 5G
Release dateApril 21, 2025April 27, 2021
AI EnabledYes-
Launched in IndiaYesYes
Form factorTouchscreenTouchscreen
Thickness8.45-
Weight (g)208.00176.00
IP ratingIP65-
Battery capacity (mAh)70004000
Fast charging80W Fast ChargingProprietary
ColoursIcy Purple, Prism BlackArctic White, Dusk Blue, Sunset Dazzle
Dimensions (mm)-159.68 x 73.90 x 7.29
display
Refresh Rate120 Hz-
Resolution StandardFHD+-
Screen size (inches)6.706.44
TouchscreenYesYes
Resolution1080x2400 pixels1080x2404 pixels
Aspect ratio-20:9
hardware
Processorocta-coreocta-core
Processor makeQualcomm Snapdragon 6 Gen 4MediaTek Dimensity 800U
RAM8GB8GB
Internal storage128GB, 256GB128GB, 256GB
Expandable storage-Yes
Expandable storage type-microSD
Expandable storage up to (GB)-1000
Dedicated microSD slot-Yes
camera
Rear camera50-megapixel (f/1.85) + 2-megapixel64-megapixel (f/1.79) + 8-megapixel (f/2.2) + 2-megapixel (f/2.4)
No. of Rear Cameras23
Front camera16-megapixel (f/2.4)44-megapixel (f/2.0)
No. of Front Cameras11
Rear autofocus-Yes
Rear flash-Yes
Front flash-Yes
software
Operating systemAndroid 15Android 11
SkinColorOS 15Funtouch OS 11.1
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac-
GPSYesYes
BluetoothYesYes, v 5.10
USB Type-CYesYes
Number of SIMs22
Active 4G on both SIM cardsYes-
USB OTG-Yes
sim 2
SIM TypeNano-SIMNano-SIM
4G/ LTEYesYes
5GYes-
GSM/CDMA-GSM
3G-Yes
sensors
In-Display Fingerprint SensorYesYes
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesYes
sim 1
SIM Type-Nano-SIM
GSM/CDMA-GSM
3G-Yes
4G/ LTE-Yes
5G-Yes
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