Samsung Galaxy M20 vs Redmi 6 vs Xiaomi Redmi 4 comparison

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ratings
Overall NDTV RatingRead ReviewRead ReviewRead Review
Design Rating
Display Rating
Software Rating
Performance Rating
Battery Life Rating
Camera Rating
Value for Money Rating
key specs
Display6.30-inch5.45-inch5.00-inch
Processor1.6GHz octa-core 2GHz octa-core 1.4GHz octa-core
Front Camera8-megapixel 5-megapixel 5-megapixel
Resolution1080x2340 pixels720x1440 pixels720x1280 pixels
RAM3GB3GB3GB
OSAndroid 8.1 OreoAndroid 8.1 OreoAndroid 6.0.1
Storage32GB32GB32GB
Rear Camera13-megapixel + 5-megapixel 12-megapixel + 5-megapixel13-megapixel
Battery Capacity5000mAh3000mAh4100mAh
general
Release dateJanuary 2019June 2018November 2016
Launched in IndiaYesYesYes
Form factorTouchscreenTouchscreenTouchscreen
Battery capacity (mAh)500030004100
Removable batteryNoNoNo
Wireless chargingNoNo-
ColoursCharcoal Black, Ocean BlueLake Blue, Gold, Rose Gold, BlackGold, Black
Body type-Plastic-
Dimensions (mm)-147.50 x 71.50 x 8.30139.30 x 69.90 x 8.65
Weight (g)-146.00150.00
display
Screen size (inches)6.305.455.00
TouchscreenYesYesYes
Resolution1080x2340 pixels720x1440 pixels720x1280 pixels
Aspect ratio19.5:918:916:9
Pixels per inch (PPI)-295296
Protection type--Gorilla Glass
hardware
Processor1.6GHz octa-core (2x1.8GHz + 6x1.6GHz)2GHz octa-core (8x2GHz)1.4GHz octa-core
Processor makeSamsung Exynos 7904MediaTek Helio P22Qualcomm Snapdragon 435
RAM3GB3GB3GB
Internal storage32GB32GB32GB
Expandable storageYesYesYes
Expandable storage typemicroSDmicroSDmicroSD
Expandable storage up to (GB)512256128
Dedicated microSD slotYesYes-
camera
Rear camera13-megapixel (f/1.9) + 5-megapixel (f/2.2)12-megapixel (f/2.2, 1.25-micron) + 5-megapixel13-megapixel
Rear autofocusYesPhase detection autofocus-
Rear flashYesLEDLED
Front camera8-megapixel (f/2.0)5-megapixel (f/2.2, 1.12-micron)5-megapixel
Front flashNoNo-
software
Operating systemAndroid 8.1 OreoAndroid 8.1 OreoAndroid 6.0.1
SkinSamsung Experience 9.5 UXMIUI 9.6MIUI 8
connectivity
Wi-Fi standards supported802.11 b/g/n802.11 b/g/n802.11 b/g/n
GPSYesYesYes
BluetoothYesYes, v 4.20Yes, v 4.10
USB Type-CYesNo-
Micro-USBNoYesYes
Headphones3.5mm3.5mm3.5mm
Number of SIMs222
Wi-Fi-YesYes
NFC-NoNo
Infrared-NoYes
USB OTG-YesYes
FM-YesYes
Active 4G on both SIM cards-Yes-
sim 1
SIM TypeNano-SIMNano-SIMMicro-SIM
GSM/CDMAGSMGSMGSM
3GYesYesYes
4G/ LTEYesYesYes
sim 2
SIM TypeNano-SIMNano-SIMNano-SIM
GSM/CDMAGSMGSMGSM
3GYesYesYes
4G/ LTEYesYesYes
sensors
Face unlockYesYes-
Fingerprint sensorYesYesYes
Proximity sensorYesYesYes
AccelerometerYesYesYes
3D face recognition-No-
Compass/ Magnetometer-YesYes
Ambient light sensor-YesYes
Gyroscope-NoYes
Barometer--No
Temperature sensor--No