Smart Phone OS:An operating system (OS) is software that interacts between a user and a smartphone.
Proprietary
Connectivity Karbonn KT21
Wi-Fi:Wireless lan technology
No
GPS:Global Positioning System
No
Bluetooth:Bluetooth is used to exchange data between nearby mobile devices.
Yes
NFC:Near field communication
No
Infrared:
No
Wi-Fi Direct:
No
MHL Out:
No
HDMI:
No
Headphones:
3.5mm
FM:
Yes
Number of SIMs:
2
SIM 1:
SIM Type:
Regular
GSM/ CDMA:
GSM
3G:Third generation cellular network
No
4G/ LTE:
No
SIM 2:
SIM Type:
Regular
GSM/ CDMA:
GSM
3G:Third generation cellular network
No
4G/ LTE:
No
Sensors Karbonn KT21
Compass:
No
Proximity sensor:
Yes
Accelerometer:
Yes
Ambient light sensor:
No
Gyroscope:
No
Barometer:
No
Temperature sensor:
No
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