Samsung Galaxy A40 vs Samsung Galaxy A30 vs Samsung Galaxy M20 vs Samsung Galaxy M30 comparison

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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-
key specs
Display5.90-inch6.40-inch6.30-inch6.40-inch
Processor1.8GHz octa-core-1.6GHz octa-core 1.6GHz octa-core
Front Camera25-megapixel16-megapixel 8-megapixel 16-megapixel
Resolution1080x2280 pixels1080x2340 pixels1080x2340 pixels-
RAM4GB4GB3GB4GB
OSAndroid 9.0 PieAndroid PieAndroid 8.1 OreoAndroid 8.1 Oreo
Storage64GB64GB32GB64GB
Rear Camera16-megapixel 16-megapixel + 5-megapixel 13-megapixel + 5-megapixel 13-megapixel + 5-megapixel + 5-megapixel
Battery Capacity3100mAh4000mAh5000mAh5000mAh
general
Release dateMarch 2019February 2019January 2019February 2019
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Dimensions (mm)144.30 x 69.10 x 7.90158.50 x 74.70 x 7.70--
Battery capacity (mAh)3100400050005000
ColoursBlue, Black, Orange, WhiteRed, Blue, BlackCharcoal Black, Ocean Blue-
Launched in India-YesYesYes
Fast charging-Proprietary-Proprietary
Removable battery--No-
Wireless charging--No-
display
Screen size (inches)5.906.406.306.40
TouchscreenYesYesYesYes
Resolution1080x2280 pixels1080x2340 pixels1080x2340 pixels-
Aspect ratio19:9-19.5:919.5:9
hardware
Processor1.8GHz octa-core-1.6GHz octa-core (2x1.8GHz + 6x1.6GHz)1.6GHz octa-core (2x1.8GHz + 6x1.6GHz)
Processor makeSamsung Exynos 7885Exynos 7904Samsung Exynos 7904Samsung Exynos 7904
RAM4GB4GB3GB4GB
Internal storage64GB64GB32GB64GB
Expandable storageYesYesYesYes
Expandable storage typemicroSDmicroSDmicroSDmicroSD
Expandable storage up to (GB)-512512512
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)13-megapixel (f/1.9) + 5-megapixel (f/2.2) + 5-megapixel (f/2.2)
Rear autofocusYesYesYes-
Rear flashYesYesYes-
Front camera25-megapixel16-megapixel (f/2.0)8-megapixel (f/2.0)16-megapixel (f/2.0)
Front flash--No-
software
Operating systemAndroid 9.0 PieAndroid PieAndroid 8.1 OreoAndroid 8.1 Oreo
SkinOne UIOne UISamsung Experience 9.5 UXSamsung Experience v9.5
connectivity
Wi-FiYesYes-Yes
GPSYesYesYesYes
BluetoothYes, v 4.20YesYesYes, v 5.00
NFCYes---
USB Type-CYesYesYesYes
Headphones3.5mm3.5mm3.5mm-
Number of SIMs2222
Wi-Fi standards supported--802.11 b/g/n802.11 a/b/g/n/ac
Micro-USB--NoYes
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---