Oppo A3s vs Xiaomi Redmi 6 Pro vs Mi A1 comparison

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key specs
Display6.20-inch5.84-inch5.50-inch
ProcessorQualcomm Snapdragon 450Qualcomm Snapdragon 625Qualcomm Snapdragon 625
Front Camera8-megapixel 5-megapixel5-megapixel
Rear Camera13-megapixel + 2-megapixel 12-megapixel + 5-megapixel12-megapixel
RAM2GB4GB4GB
Storage16GB64GB64GB
Battery Capacity4230mAh4000mAh3080mAh
OSAndroid 8.1 OreoAndroid 8.1 OreoAndroid 7.1.2
Resolution720x1520 pixels1080x2280 pixels1080x1920 pixels
general
BrandOppoXiaomiXiaomi
ModelA3sRedmi 6 ProMi A1
Form factorTouchscreenTouchscreenTouchscreen
Dimensions (mm)156.20 x 75.60 x 8.20149.33 x 71.68 x 8.75155.40 x 75.80 x 7.30
Weight (g)168.00178.00165.00
Battery capacity (mAh)423040003080
ColoursRed, Dark PurpleGold, Blue, Black, RedRose Gold, Gold, Black
Release date-September 1, 2018September 1, 2017
Launched in India-YesYes
Body type-Metal-
Removable battery-NoNo
Wireless charging-No-
SAR value-0.96-
display
Screen size (inches)6.205.845.50
TouchscreenYesYesYes
Resolution720x1520 pixels1080x2280 pixels1080x1920 pixels
Aspect ratio19:919:916:9
Pixels per inch (PPI)-432-
hardware
Processor1.8GHz octa-core2GHz octa-core (8x2GHz)2GHz octa-core
Processor makeQualcomm Snapdragon 450Qualcomm Snapdragon 625Qualcomm Snapdragon 625
RAM2GB4GB4GB
Internal storage16GB64GB64GB
Expandable storageYesYesYes
Expandable storage typemicroSDmicroSDmicroSD
Expandable storage up to (GB)256256128
Dedicated microSD slot-Yes-
camera
Rear camera13-megapixel (f/2.2) + 2-megapixel (f/2.4)12-megapixel (f/2.2, 1.25-micron) + 5-megapixel12-megapixel
Rear autofocusYesPhase detection autofocus-
Rear flashLEDLEDDual LED
Front camera8-megapixel (f/2.2)5-megapixel5-megapixel
Front flash-No-
software
Operating systemAndroid 8.1 OreoAndroid 8.1 OreoAndroid 7.1.2
SkinColorOS 5.1MIUI 9.6-
connectivity
Wi-FiYesYesYes
GPSYesYesYes
BluetoothYes, v 4.20Yes, v 4.20Yes, v 4.20
Micro-USBYesYes-
Headphones3.5mm3.5mm3.5mm
Wi-Fi DirectYes-No
Wi-Fi standards supported-802.11 a/b/g/n802.11 a/b/g/n/ac
NFC-NoNo
Infrared-YesYes
USB OTG-YesYes
USB Type-C-NoYes
FM-YesNo
Number of SIMs-22
Active 4G on both SIM cards-No-
Mobile High-Definition Link (MHL)--No
sensors
Compass/ MagnetometerYesYesYes
Proximity sensorYesYesYes
AccelerometerYesYesYes
Face unlock-Yes-
3D face recognition-No-
Fingerprint sensor-YesYes
Ambient light sensor-YesYes
Gyroscope-YesYes
Barometer--No
Temperature sensor--No
ratings
Overall NDTV Rating-Read ReviewRead Review
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
sim 1
SIM Type-Nano-SIMNano-SIM
GSM/CDMA-GSMGSM
3G-YesYes
4G/ LTE-YesYes
sim 2
SIM Type-Nano-SIMNano-SIM
GSM/CDMA-GSMGSM
3G-YesYes
4G/ LTE-YesYes
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