Karbonn A40 Indian vs Jio Phone vs Airtel Red comparison

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Ratings
Overall NDTV Rating--
Design Rating--
Display Rating--
Software Rating--
Performance Rating--
Camera Rating--
General
Release dateJuly 2017July 2017February 2015-
Form factorTouchscreenBarTouchscreen-
Dimensions (mm)122.95 x 64.30 x 10.50---
Weight (g)118.00---
Battery capacity (mAh)140020001300-
Removable batteryYesYesNo-
ColoursBlue, Coffee Brown, Black, ChampagneBlack--
SAR Value1.39---
Display
Screen size (inches)4.002.403.50-
TouchscreenYesNoYes-
Resolution480x800 pixels240x320 pixels320x480 pixels-
Hardware
Processor1.3GHz quad-core1.2GHz dual-coredual-core-
Processor makeSpreadtrum SC9832ASPRD 9820A/QC8905Qualcomm-
RAM1GB512MB512MB-
Internal storage8GB4GB4GB-
Expandable storageYesYesYes-
Expandable storage typemicroSDmicroSDmicroSD-
Expandable storage up to (GB)3212832-
Camera
Rear camera2-megapixel2-megapixel3-megapixel-
Front camera0.3-megapixel0.3-megapixelNo-
Software
Operating SystemAndroid 7.0KAI OSAndroid 4.4-
Connectivity
Wi-FiYesYesYes-
Wi-Fi standards supported802.11 b/g/n---
GPSNoYesYes-
BluetoothYes, v 4.00Yes, v 4.10Yes-
NFCNoYesNo-
InfraredNoNoNo-
Headphones3.5mmYes3.5mm-
FMYesYesNo-
Number of SIMs211-
SIM1
SIM TypeRegularNano-SIM--
GSM/CDMAGSMGSMGSM-
3GYesNoYes-
4G/LTEYesYesNo-
SIM2
SIM TypeRegular---
GSM/CDMAGSM---
3GYes---
4G/LTEYes---
Sensors
Compass/ MagnetometerNoNoNo-
Proximity sensorYesNoYes-
AccelerometerYesNoYes-
Ambient light sensorNoNoNo-
GyroscopeNoNoNo-
BarometerNoNoNo-
Temperature sensorNoNoNo-