Motorola Signature vs Karbonn KT21 comparison

Compare Motorola Signature
Compare 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
Display6.80-inch2.80-inch
ProcessorSnapdragon 8 Gen 5one-core
Front Camera50-megapixel No
Rear Camera50-megapixel + 50-megapixel 3.2-megapixel
RAM12GB, 16GB-
Storage256GB, 512GB, 1TB-
Battery Capacity5200mAh1000mAh
OSAndroid 16Proprietary
Resolution1264x2780 pixels-
general
BrandMotorolaKarbonn
ModelSignatureKT21
Release dateJanuary 7, 2026March 1, 2012
AI EnabledYes-
Form factorTouchscreenBar
Body typeMetal-
Dimensions (mm)162.10 x 76.40 x 6.99-
Weight (g)186.00-
IP ratingIP69-
Battery capacity (mAh)52001000
Removable batteryNoYes
Fast charging90W Fast Charging-
Wireless Charging Type50W-
ColoursPantone Carbon, Pantone Martini OliveBlack
display
Refresh Rate165 Hz-
Screen size (inches)6.802.80
TouchscreenYesYes
Resolution1264x2780 pixels-
Protection typeGorilla Glass Victus 2-
Aspect ratio20:9-
Pixels per inch (PPI)450-
hardware
Processorocta-coreone-core
Processor makeSnapdragon 8 Gen 5-
RAM12GB, 16GB-
Internal storage256GB, 512GB, 1TB-
Expandable storage-Yes
Expandable storage type-microSD
Expandable storage up to (GB)-32
camera
Rear camera50-megapixel (f/1.6) + 50-megapixel (f/2.0)3.2-megapixel
No. of Rear Cameras3-
Rear third camera attr (50-micron)-
Front camera50-megapixel (f/2.0)No
No. of Front Cameras1-
Lens Type (Second Rear Camera)Ultra Wide-Angle-
Lens Type (Third Rear Camera)Telephoto-
Rear flash-Yes
software
Operating systemAndroid 16Proprietary
SkinHello UI-
connectivity
Wi-Fi 7Yes-
Wi-FiYesNo
GPSYesNo
BluetoothYes, v 6.00Yes
USB Type-CYes-
Number of SIMs22
NFC-No
Infrared-No
USB OTG-No
Headphones-3.5mm
FM-Yes
Wi-Fi Direct-No
Mobile High-Definition Link (MHL)-No
sim 1
SIM TypeNano-SIMRegular
4G/ LTEYesNo
5GYes-
GSM/CDMA-GSM
3G-No
sim 2
SIM TypeeSIMRegular
4G/ LTEYesNo
5GYes-
GSM/CDMA-GSM
3G-No
sensors
Face unlockYes-
In-Display Fingerprint SensorYes-
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesNo
GyroscopeYesNo
Compass/ Magnetometer-No
Barometer-No
Temperature sensor-No
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