Redmi 6 vs Mi A1 vs Realme 2 Pro vs Samsung Galaxy M20 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
Display5.45-inch5.50-inch6.30-inch6.30-inch
Processor2GHz octa-core 2GHz octa-core1.8GHz octa-core1.6GHz octa-core
Front Camera5-megapixel 5-megapixel16-megapixel 8-megapixel
Resolution720x1440 pixels1080x1920 pixels1080x2340 pixels1080x2340 pixels
RAM3GB4GB8GB3GB
OSAndroid 8.1 OreoAndroid 7.1.2Android 8.1Android 8.1 Oreo
Storage32GB64GB128GB32GB
Rear Camera12-megapixel + 5-megapixel12-megapixel16-megapixel + 2-megapixel 13-megapixel + 5-megapixel
Battery Capacity3000mAh3080mAh3500mAh5000mAh
general
Release dateJune 2018September 2017September 2018January 2019
Launched in IndiaYesYesYesYes
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Body typePlastic-Polycarbonate-
Dimensions (mm)147.50 x 71.50 x 8.30155.40 x 75.80 x 7.30156.70 x 74.00 x 8.50-
Weight (g)146.00165.00174.00-
Battery capacity (mAh)3000308035005000
Removable batteryNoNoNoNo
Wireless chargingNo-NoNo
ColoursLake Blue, Gold, Rose Gold, BlackRose Gold, Gold, BlackIce Lake, Blue Ocean, Black SeaCharcoal Black, Ocean Blue
SAR value--0.83-
display
Screen size (inches)5.455.506.306.30
TouchscreenYesYesYesYes
Resolution720x1440 pixels1080x1920 pixels1080x2340 pixels1080x2340 pixels
Aspect ratio18:916:919.5:919.5:9
Pixels per inch (PPI)295-409-
Protection type--Gorilla Glass-
hardware
Processor2GHz octa-core (8x2GHz)2GHz octa-core1.8GHz octa-core1.6GHz octa-core (2x1.8GHz + 6x1.6GHz)
Processor makeMediaTek Helio P22Qualcomm Snapdragon 625Qualcomm Snapdragon 660Samsung Exynos 7904
RAM3GB4GB8GB3GB
Internal storage32GB64GB128GB32GB
Expandable storageYesYesYesYes
Expandable storage typemicroSDmicroSDmicroSDmicroSD
Expandable storage up to (GB)256128256512
Dedicated microSD slotYes-YesYes
camera
Rear camera12-megapixel (f/2.2, 1.25-micron) + 5-megapixel12-megapixel16-megapixel (f/1.7) + 2-megapixel (f/2.4)13-megapixel (f/1.9) + 5-megapixel (f/2.2)
Rear autofocusPhase detection autofocus-YesYes
Rear flashLEDDual LEDYesYes
Front camera5-megapixel (f/2.2, 1.12-micron)5-megapixel16-megapixel (f/2.0)8-megapixel (f/2.0)
Front flashNo--No
software
Operating systemAndroid 8.1 OreoAndroid 7.1.2Android 8.1Android 8.1 Oreo
SkinMIUI 9.6-ColorOS 5.2Samsung Experience 9.5 UX
connectivity
Wi-FiYesYesYes-
Wi-Fi standards supported802.11 b/g/n802.11 a/b/g/n/ac802.11 b/g/n/ac802.11 b/g/n
GPSYesYesYesYes
BluetoothYes, v 4.20Yes, v 4.20Yes, v 5.00Yes
NFCNoNoNo-
InfraredNoYesNo-
USB OTGYesYesYes-
USB Type-CNoYes-Yes
Micro-USBYes-YesNo
Headphones3.5mm3.5mm3.5mm3.5mm
FMYesNoNo-
Number of SIMs2222
Active 4G on both SIM cardsYes-Yes-
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 unlockYes-YesYes
3D face recognitionNo---
Fingerprint sensorYesYesYesYes
Compass/ MagnetometerYesYesYes-
Proximity sensorYesYesYesYes
AccelerometerYesYesYesYes
Ambient light sensorYesYesYes-
GyroscopeNoYesYes-
Barometer-No--
Temperature sensor-No--