Samsung Galaxy A40 vs Realme U1 vs Xiaomi Mi A2 comparison

Compare Samsung Galaxy A40
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Compare Xiaomi Mi A2
ratings
Overall NDTV Rating-Read ReviewRead Review-
Design Rating--
Display Rating--
Software Rating--
Performance Rating--
Battery Life Rating--
Camera Rating--
Value for Money Rating--
key specs
Display5.90-inch6.30-inch5.99-inch-
Processor1.8GHz octa-core2.1GHz octa-coreocta-core -
Front Camera25-megapixel25-megapixel 20-megapixel -
Resolution1080x2280 pixels1080x2340 pixels1080x2160 pixels-
RAM4GB4GB4GB-
OSAndroid 9.0 PieAndroid 8.1 OreoAndroid 8.1 Oreo-
Storage64GB64GB64GB-
Rear Camera16-megapixel 13-megapixel + 2-megapixel 12-megapixel + 20-megapixel -
Battery Capacity3100mAh3500mAh3000mAh-
general
Release dateMarch 2019November 2018July 2018-
Form factorTouchscreenTouchscreenTouchscreen-
Dimensions (mm)144.30 x 69.10 x 7.90157.00 x 74.00 x 8.00158.70 x 75.40 x 7.30-
Battery capacity (mAh)310035003000-
ColoursBlue, Black, Orange, WhiteAmbitious Black, Brave Blue, and Fiery GoldBlack, Gold, Lake Blue, Rose Gold-
Launched in India-YesYes-
Weight (g)-168.00168.00-
Removable battery-NoNo-
Wireless charging-No--
SAR value-1.31--
display
Screen size (inches)5.906.305.99-
TouchscreenYesYesYes-
Resolution1080x2280 pixels1080x2340 pixels1080x2160 pixels-
Aspect ratio19:919.5:918:9-
Protection type-Gorilla Glass--
Pixels per inch (PPI)-409403-
hardware
Processor1.8GHz octa-core2.1GHz octa-coreocta-core (4x2.2GHz + 4x1.8GHz)-
Processor makeSamsung Exynos 7885MediaTek Helio P70Qualcomm Snapdragon 660-
RAM4GB4GB4GB-
Internal storage64GB64GB64GB-
Expandable storageYesYesNo-
Expandable storage typemicroSDmicroSDmicroSD-
Expandable storage up to (GB)-256--
Dedicated microSD slot-Yes--
camera
Rear camera16-megapixel (f/2.0)13-megapixel (f/2.2) + 2-megapixel (f/2.4)12-megapixel (f/1.8, 1.25-micron) + 20-megapixel (f/1.8, 1.0-micron)-
Rear autofocusYes-Phase detection autofocus-
Rear flashYesLEDDual LED-
Front camera25-megapixel25-megapixel (f/2.0)20-megapixel (f/2.2, 1.0-micron)-
Front flash--LED-
software
Operating systemAndroid 9.0 PieAndroid 8.1 OreoAndroid 8.1 Oreo-
SkinOne UIColorOS 5.2--
connectivity
Wi-FiYesYesYes-
GPSYesYesYes-
BluetoothYes, v 4.20Yes, v 4.20Yes, v 5.00-
NFCYes-Yes-
USB Type-CYes---
Headphones3.5mm3.5mmNo-
Number of SIMs222-
Wi-Fi standards supported-802.11 a/b/g/n/ac802.11 a/b/g/n/ac-
USB OTG-YesYes-
Micro-USB-Yes--
FM-Yes--
Active 4G on both SIM cards-Yes--
sim 1
SIM TypeNano-SIMNano-SIMNano-SIM-
GSM/CDMAGSMGSMGSM-
3GYesYesYes-
4G/ LTEYesYesYes-
sim 2
SIM TypeNano-SIMNano-SIMNano-SIM-
GSM/CDMAGSMGSMGSM-
3GYesYesYes-
4G/ LTEYesYesYes-
sensors
Face unlockYesYes--
Fingerprint sensorYesYesYes-
Compass/ MagnetometerYesYesYes-
Proximity sensorYesYesYes-
AccelerometerYesYesYes-
Ambient light sensorYesYesYes-
GyroscopeYesYesYes-