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OnePlus 13s vs Karbonn KT21 comparison

 Compare OnePlus 13s
OnePlus 13s
Compare Karbonn KT21
Karbonn KT21
ratings
Overall NDTV RatingRead ReviewRead Review
Design Rating
Display Rating
Software Rating
Performance Rating
Battery Life Rating
Camera Rating
Value for Money Rating
key specs
Display6.32-inch2.80-inch
ProcessorSnapdragon 8 Eliteone-core
Front Camera32-megapixel No
Rear Camera50-megapixel + 50-megapixel 3.2-megapixel
RAM12GB-
Storage256GB, 512GB-
Battery Capacity5850mAh1000mAh
OSAndroid 15Proprietary
Resolution1216x2640 pixels-
general
BrandOnePlusKarbonn
Model13sKT21
Release dateJune 5, 2025March 1, 2012
AI EnabledYes-
Launched in IndiaYes-
Form factorTouchscreenBar
Dimensions (mm)150.80 x 71.70 x 8.20-
Weight (g)185.00-
IP ratingIP65-
Battery capacity (mAh)58501000
Removable batteryNoYes
Fast charging80W Fast Charging-
ColoursBlack Velvet, Green Silk, Pink SatinBlack
display
Refresh Rate120 Hz-
Resolution Standard1.5K-
Screen size (inches)6.322.80
TouchscreenYesYes
Resolution1216x2640 pixels-
Pixels per inch (PPI)460-
hardware
Processorocta-coreone-core
Processor makeSnapdragon 8 Elite-
RAM12GB-
Internal storage256GB, 512GB-
Expandable storageNoYes
Expandable storage typeNomicroSD
Dedicated microSD slotNo-
Expandable storage up to (GB)-32
camera
Rear camera50-megapixel (f/1.8) + 50-megapixel (f/2.0)3.2-megapixel
No. of Rear Cameras2-
Rear flashYesYes
Front camera32-megapixel (f/2.0)No
No. of Front Cameras1-
Lens Type (Second Rear Camera)Telephoto-
software
Operating systemAndroid 15Proprietary
SkinOxygenOS 15-
connectivity
Wi-Fi 7Yes-
GPSYesNo
BluetoothYes, v 6.00Yes
NFCYesNo
InfraredYesNo
USB Type-CYes-
Number of SIMs22
Active 4G on both SIM cardsYes-
Wi-Fi-No
USB OTG-No
Headphones-3.5mm
FM-Yes
Wi-Fi Direct-No
Mobile High-Definition Link (MHL)-No
sim 1
SIM TypeNano-SIMRegular
GSM/CDMAGSMGSM
3GYesNo
4G/ LTEYesNo
5GYes-
sim 2
SIM TypeNano-SIMRegular
GSM/CDMAGSMGSM
3GYesNo
4G/ LTEYesNo
5GYes-
sensors
In-Display Fingerprint SensorYes-
Compass/ MagnetometerYesNo
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesNo
GyroscopeYesNo
Barometer-No
Temperature sensor-No
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