Microsoft Surface Duo vs Microsoft Lumia 640 comparison

Show Only Differences Highlight Differences	Microsoft Surface Duo	Microsoft Lumia 640
key specs
Display (Primary)	5.60-inch	-
Processor	Qualcomm Snapdragon 855	Qualcomm Snapdragon 400
Front Camera	Unspecified	0.9-megapixel
OS	Android	Windows Phone 8.1
Display	-	5.00-inch
Rear Camera	-	8-megapixel
RAM	-	1GB
Storage	-	8GB
Battery Capacity	-	2500mAh
Resolution	-	720x1280 pixels
general
Brand	Microsoft	Microsoft
Model	Surface Duo	Lumia 640
Body type	Glass	-
Removable battery	No	Yes
Release date	-	February 1, 2015
Form factor	-	Touchscreen
Dimensions (mm)	-	141.30 x 72.20 x 8.80
Weight (g)	-	145.00
Battery capacity (mAh)	-	2500
display
Screen size (inches)	5.60	5.00
Touchscreen	Yes	Yes
Resolution	-	720x1280 pixels
Pixels per inch (PPI)	-	294
second display
Screen size (inches)	5.60	-
Touchscreen	Yes	-
hardware
Processor	octa-core	1.2GHz quad-core
Processor make	Qualcomm Snapdragon 855	Qualcomm Snapdragon 400
RAM	-	1GB
Internal storage	-	8GB
Expandable storage	-	Yes
Expandable storage type	-	microSD
Expandable storage up to (GB)	-	128
camera
Front camera	Unspecified	0.9-megapixel
Rear camera	-	8-megapixel
Rear flash	-	LED
software
Operating system	Android	Windows Phone 8.1
connectivity
Wi-Fi	Yes	Yes
Bluetooth	Yes	Yes
USB Type-C	Yes	-
Wi-Fi standards supported	-	802.11 b/g/n
GPS	-	Yes
NFC	-	No
Infrared	-	No
USB OTG	-	No
Headphones	-	3.5mm
FM	-	No
Number of SIMs	-	1
Wi-Fi Direct	-	No
Mobile High-Definition Link (MHL)	-	No
sensors
Fingerprint sensor	Yes	-
Compass/ Magnetometer	Yes	Yes
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Ambient light sensor	Yes	Yes
Gyroscope	Yes	No
Barometer	-	No
Temperature sensor	-	No
sim 1
SIM Type	-	Micro-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	No

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