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Samsung Galaxy A40 vs Samsung Galaxy A30 vs Samsung Galaxy M20 vs Redmi 6 comparison

 Compare Samsung Galaxy A40
Samsung Galaxy A40
Compare Samsung Galaxy A30
Samsung Galaxy A30
Compare Samsung Galaxy M20
Samsung Galaxy M20
Compare Redmi 6
Redmi 6
key specs
Display5.90-inch6.40-inch6.30-inch5.45-inch
ProcessorSamsung Exynos 7885-Samsung Exynos 7904MediaTek Helio P22
Front Camera25-megapixel16-megapixel 8-megapixel 5-megapixel
Rear Camera16-megapixel 16-megapixel + 5-megapixel 13-megapixel + 5-megapixel 12-megapixel + 5-megapixel
RAM4GB4GB3GB3GB
Storage64GB64GB32GB32GB
Battery Capacity3100mAh4000mAh5000mAh3000mAh
OSAndroid 9.0 PieAndroid PieAndroid 8.1 OreoAndroid 8.1 Oreo
Resolution1080x2280 pixels1080x2340 pixels1080x2340 pixels720x1440 pixels
general
BrandSamsungSamsungSamsungXiaomi
ModelGalaxy A40Galaxy A30Galaxy M20Redmi 6
Release dateMarch 1, 2019February 1, 2019January 1, 2019June 1, 2018
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Dimensions (mm)144.30 x 69.10 x 7.90158.50 x 74.70 x 7.70-147.50 x 71.50 x 8.30
Battery capacity (mAh)3100400050003000
ColoursBlue, Black, Orange, WhiteRed, Blue, BlackCharcoal Black, Ocean BlueLake Blue, Gold, Rose Gold, Black
Launched in India-YesYesYes
Fast charging-Proprietary--
Removable battery--NoNo
Wireless charging--NoNo
Body type---Plastic
Weight (g)---146.00
display
Screen size (inches)5.906.406.305.45
TouchscreenYesYesYesYes
Resolution1080x2280 pixels1080x2340 pixels1080x2340 pixels720x1440 pixels
Aspect ratio19:9-19.5:918:9
Pixels per inch (PPI)---295
hardware
Processor1.8GHz octa-core-1.6GHz octa-core (2x1.8GHz + 6x1.6GHz)2GHz octa-core (8x2GHz)
Processor makeSamsung Exynos 7885Samsung Exynos 7904Samsung Exynos 7904MediaTek Helio P22 (MT6762)
RAM4GB4GB3GB3GB
Internal storage64GB64GB32GB32GB
Expandable storageYesYesYesYes
Expandable storage typemicroSDmicroSDmicroSDmicroSD
Expandable storage up to (GB)-512512256
Dedicated microSD slot-YesYesYes
camera
Rear camera16-megapixel (f/2.0)16-megapixel (f/1.7) + 5-megapixel (f/2.2)13-megapixel (f/1.9) + 5-megapixel (f/2.2)12-megapixel (f/2.2, 1.25-micron) + 5-megapixel
Rear autofocusYesYesYesPhase detection autofocus
Rear flashYesYesYesLED
Front camera25-megapixel16-megapixel (f/2.0)8-megapixel (f/2.0)5-megapixel (f/2.2, 1.12-micron)
Front flash--NoNo
software
Operating systemAndroid 9.0 PieAndroid PieAndroid 8.1 OreoAndroid 8.1 Oreo
SkinOne UIOne UISamsung Experience 9.5 UXMIUI 9.6
connectivity
Wi-FiYesYes-Yes
GPSYesYesYesYes
BluetoothYes, v 4.20YesYesYes, v 4.20
NFCYes--No
USB Type-CYesYesYesNo
Headphones3.5mm3.5mm3.5mm3.5mm
Number of SIMs2222
Wi-Fi standards supported--802.11 b/g/n802.11 b/g/n
Micro-USB--NoYes
Infrared---No
USB OTG---Yes
FM---Yes
Active 4G on both SIM cards---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
Fingerprint sensorYesYesYesYes
Compass/ MagnetometerYes--Yes
Proximity sensorYesYesYesYes
AccelerometerYesYesYesYes
Ambient light sensorYes--Yes
GyroscopeYes--No
3D face recognition---No
ratings
Overall NDTV Rating-Read ReviewRead ReviewRead Review
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-

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