Samsung Galaxy M20 vs Realme 2 Pro vs Redmi 6 vs Mi A1 comparison

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ratings
Overall NDTV RatingRead ReviewRead ReviewRead ReviewRead Review
Design Rating
Display Rating
Software Rating
Performance Rating
Battery Life Rating
Camera Rating
Value for Money Rating
key specs
Display6.30-inch6.30-inch5.45-inch5.50-inch
Processor1.6GHz octa-core 1.8GHz octa-core2GHz octa-core 2GHz octa-core
Front Camera8-megapixel 16-megapixel 5-megapixel 5-megapixel
Resolution1080x2340 pixels1080x2340 pixels720x1440 pixels1080x1920 pixels
RAM3GB8GB3GB4GB
OSAndroid 8.1 OreoAndroid 8.1Android 8.1 OreoAndroid 7.1.2
Storage32GB128GB32GB64GB
Rear Camera13-megapixel + 5-megapixel 16-megapixel + 2-megapixel 12-megapixel + 5-megapixel12-megapixel
Battery Capacity5000mAh3500mAh3000mAh3080mAh
general
Release dateJanuary 2019September 2018June 2018September 2017
Launched in IndiaYesYesYesYes
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Battery capacity (mAh)5000350030003080
Removable batteryNoNoNoNo
Wireless chargingNoNoNo-
ColoursCharcoal Black, Ocean BlueIce Lake, Blue Ocean, Black SeaLake Blue, Gold, Rose Gold, BlackRose Gold, Gold, Black
Body type-PolycarbonatePlastic-
Dimensions (mm)-156.70 x 74.00 x 8.50147.50 x 71.50 x 8.30155.40 x 75.80 x 7.30
Weight (g)-174.00146.00165.00
SAR value-0.83--
display
Screen size (inches)6.306.305.455.50
TouchscreenYesYesYesYes
Resolution1080x2340 pixels1080x2340 pixels720x1440 pixels1080x1920 pixels
Aspect ratio19.5:919.5:918:916:9
Protection type-Gorilla Glass--
Pixels per inch (PPI)-409295-
hardware
Processor1.6GHz octa-core (2x1.8GHz + 6x1.6GHz)1.8GHz octa-core2GHz octa-core (8x2GHz)2GHz octa-core
Processor makeSamsung Exynos 7904Qualcomm Snapdragon 660MediaTek Helio P22Qualcomm Snapdragon 625
RAM3GB8GB3GB4GB
Internal storage32GB128GB32GB64GB
Expandable storageYesYesYesYes
Expandable storage typemicroSDmicroSDmicroSDmicroSD
Expandable storage up to (GB)512256256128
Dedicated microSD slotYesYesYes-
camera
Rear camera13-megapixel (f/1.9) + 5-megapixel (f/2.2)16-megapixel (f/1.7) + 2-megapixel (f/2.4)12-megapixel (f/2.2, 1.25-micron) + 5-megapixel12-megapixel
Rear autofocusYesYesPhase detection autofocus-
Rear flashYesYesLEDDual LED
Front camera8-megapixel (f/2.0)16-megapixel (f/2.0)5-megapixel (f/2.2, 1.12-micron)5-megapixel
Front flashNo-No-
software
Operating systemAndroid 8.1 OreoAndroid 8.1Android 8.1 OreoAndroid 7.1.2
SkinSamsung Experience 9.5 UXColorOS 5.2MIUI 9.6-
connectivity
Wi-Fi standards supported802.11 b/g/n802.11 b/g/n/ac802.11 b/g/n802.11 a/b/g/n/ac
GPSYesYesYesYes
BluetoothYesYes, v 5.00Yes, v 4.20Yes, v 4.20
USB Type-CYes-NoYes
Micro-USBNoYesYes-
Headphones3.5mm3.5mm3.5mm3.5mm
Number of SIMs2222
Wi-Fi-YesYesYes
NFC-NoNoNo
Infrared-NoNoYes
USB OTG-YesYesYes
FM-NoYesNo
Active 4G on both SIM cards-YesYes-
sim 1
SIM TypeNano-SIMNano-SIMNano-SIMNano-SIM
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/ LTEYesYesYesYes
sim 2
SIM TypeNano-SIMNano-SIMNano-SIMNano-SIM
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/ LTEYesYesYesYes
sensors
Face unlockYesYesYes-
Fingerprint sensorYesYesYesYes
Proximity sensorYesYesYesYes
AccelerometerYesYesYesYes
Compass/ Magnetometer-YesYesYes
Ambient light sensor-YesYesYes
Gyroscope-YesNoYes
3D face recognition--No-
Barometer---No
Temperature sensor---No