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Realme U1 vs Oppo A3s vs Mi A1 comparison

 Compare Realme U1
Realme U1
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Oppo A3s
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Mi A1
ratings
Overall NDTV RatingRead Review-Read Review
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
key specs
Display6.30-inch6.20-inch5.50-inch
ProcessorMediaTek Helio P70Qualcomm Snapdragon 450Qualcomm Snapdragon 625
Front Camera25-megapixel 8-megapixel 5-megapixel
Rear Camera13-megapixel + 2-megapixel 13-megapixel + 2-megapixel 12-megapixel
RAM4GB2GB4GB
Storage64GB16GB64GB
Battery Capacity3500mAh4230mAh3080mAh
OSAndroid 8.1 OreoAndroid 8.1 OreoAndroid 7.1.2
Resolution1080x2340 pixels720x1520 pixels1080x1920 pixels
general
BrandRealmeOppoXiaomi
ModelU1A3sMi A1
Release dateNovember 1, 2018-September 1, 2017
Launched in IndiaYes-Yes
Form factorTouchscreenTouchscreenTouchscreen
Dimensions (mm)157.00 x 74.00 x 8.00156.20 x 75.60 x 8.20155.40 x 75.80 x 7.30
Weight (g)168.00168.00165.00
Battery capacity (mAh)350042303080
Removable batteryNo-No
Wireless chargingNo--
ColoursAmbitious Black, Brave Blue, and Fiery GoldRed, Dark PurpleRose Gold, Gold, Black
SAR value1.31--
display
Screen size (inches)6.306.205.50
TouchscreenYesYesYes
Resolution1080x2340 pixels720x1520 pixels1080x1920 pixels
Protection typeGorilla Glass--
Aspect ratio19.5:919:916:9
Pixels per inch (PPI)409--
hardware
Processor2.1GHz octa-core1.8GHz octa-core2GHz octa-core
Processor makeMediaTek Helio P70Qualcomm Snapdragon 450Qualcomm Snapdragon 625
RAM4GB2GB4GB
Internal storage64GB16GB64GB
Expandable storageYesYesYes
Expandable storage typemicroSDmicroSDmicroSD
Expandable storage up to (GB)256256128
Dedicated microSD slotYes--
camera
Rear camera13-megapixel (f/2.2) + 2-megapixel (f/2.4)13-megapixel (f/2.2) + 2-megapixel (f/2.4)12-megapixel
Rear flashLEDLEDDual LED
Front camera25-megapixel (f/2.0)8-megapixel (f/2.2)5-megapixel
Rear autofocus-Yes-
software
Operating systemAndroid 8.1 OreoAndroid 8.1 OreoAndroid 7.1.2
SkinColorOS 5.2ColorOS 5.1-
connectivity
Wi-FiYesYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac-802.11 a/b/g/n/ac
GPSYesYesYes
BluetoothYes, v 4.20Yes, v 4.20Yes, v 4.20
USB OTGYes-Yes
Micro-USBYesYes-
Headphones3.5mm3.5mm3.5mm
FMYes-No
Number of SIMs2-2
Active 4G on both SIM cardsYes--
Wi-Fi Direct-YesNo
NFC--No
Infrared--Yes
USB Type-C--Yes
Mobile High-Definition Link (MHL)--No
sim 1
SIM TypeNano-SIM-Nano-SIM
GSM/CDMAGSM-GSM
3GYes-Yes
4G/ LTEYes-Yes
sim 2
SIM TypeNano-SIM-Nano-SIM
GSM/CDMAGSM-GSM
3GYes-Yes
4G/ LTEYes-Yes
sensors
Face unlockYes--
Fingerprint sensorYes-Yes
Compass/ MagnetometerYesYesYes
Proximity sensorYesYesYes
AccelerometerYesYesYes
Ambient light sensorYes-Yes
GyroscopeYes-Yes
Barometer--No
Temperature sensor--No

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