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Oppo A3s (3GB RAM, 32GB) vs Microsoft Lumia 640 Dual SIM comparison

 Compare Oppo A3s (3GB RAM, 32GB)
Oppo A3s (3GB RAM, 32GB)
Compare Microsoft Lumia 640 Dual SIM
Microsoft Lumia 640 Dual SIM
key specs
Display6.20-inch5.00-inch
ProcessorQualcomm Snapdragon 450Qualcomm Snapdragon 400
Front Camera8-megapixel 0.9-megapixel
Rear Camera13-megapixel + 2-megapixel 8-megapixel
RAM3GB1GB
Storage32GB8GB
Battery Capacity4230mAh2500mAh
OSAndroid 8.1 OreoWindows Phone 8.1
Resolution720x1520 pixels720x1280 pixels
general
BrandOppoMicrosoft
ModelA3sLumia 640 Dual SIM
Form factorTouchscreenTouchscreen
Dimensions (mm)156.20 x 75.60 x 8.20141.30 x 72.20 x 8.80
Weight (g)168.00145.00
Battery capacity (mAh)42302500
ColoursPurple, Red-
Release date-February 1, 2015
Removable battery-Yes
display
Screen size (inches)6.205.00
TouchscreenYesYes
Resolution720x1520 pixels720x1280 pixels
Aspect ratio19:9-
Pixels per inch (PPI)-294
hardware
Processor1.8GHz octa-core1.2GHz quad-core
Processor makeQualcomm Snapdragon 450Qualcomm Snapdragon 400
RAM3GB1GB
Internal storage32GB8GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)256128
camera
Rear camera13-megapixel (f/2.2) + 2-megapixel (f/2.4)8-megapixel
Rear autofocusYes-
Rear flashLEDLED
Front camera8-megapixel (f/2.2)0.9-megapixel
software
Operating systemAndroid 8.1 OreoWindows Phone 8.1
SkinColorOS 5.1-
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYes, v 4.20Yes
Micro-USBYes-
Headphones3.5mm3.5mm
Wi-Fi DirectYesNo
Wi-Fi standards supported-802.11 b/g/n
NFC-No
Infrared-No
USB OTG-No
FM-Yes
Number of SIMs-2
Mobile High-Definition Link (MHL)-No
sensors
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensor-Yes
Gyroscope-No
Barometer-No
Temperature sensor-No
sim 1
SIM Type-Micro-SIM
GSM/CDMA-GSM
3G-Yes
4G/ LTE-No
sim 2
SIM Type-Micro-SIM
GSM/CDMA-GSM
3G-Yes
4G/ LTE-No
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