JioPhone Prima 4G vs Karbonn K21 comparison

Compare JioPhone Prima 4G
Compare Karbonn K21
key specs
Display2.40-inch2.20-inch
Rear Camera0.3-megapixel1.3-megapixel
Battery Capacity1800mAh1000mAh
OSKAI OSProprietary
Resolution240x320 pixels176x220 pixels
Processor-one-core
Front Camera-No
general
BrandJioKarbonn
ModelPhone Prima 4GK21
Release dateNovember 8, 2023December 1, 2011
Launched in IndiaYes-
Form factorBarBar
Battery capacity (mAh)18001000
ColoursBlueCoffee, Grey
Alternate names-K21 Radio jockey
Dimensions (mm)-111.50 x 47.30 x 14.30
Weight (g)-80.00
Removable battery-Yes
display
Screen size (inches)2.402.20
TouchscreenNoNo
Resolution240x320 pixels176x220 pixels
hardware
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)1288
Processor-one-core
camera
Rear camera0.3-megapixel1.3-megapixel
No. of Rear Cameras1-
Rear flash-No
Front camera-No
software
Operating systemKAI OSProprietary
connectivity
BluetoothYes, v 5.00Yes
Micro-USBYes-
FMYesYes
Number of SIMs12
Wi-Fi-No
GPS-No
NFC-No
Infrared-No
USB OTG-No
Wi-Fi Direct-No
Mobile High-Definition Link (MHL)-No
sim 1
SIM TypeNano-SIMRegular
3GYesNo
4G/ LTEYesNo
GSM/CDMA-GSM
sim 2
SIM Type-Regular
GSM/CDMA-GSM
3G-No
4G/ LTE-No
sensors
Compass/ Magnetometer-No
Proximity sensor-No
Accelerometer-No
Ambient light sensor-No
Gyroscope-No
Barometer-No
Temperature sensor-No

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