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Microsoft Lumia 550 vs Microsoft Lumia 640 Dual SIM

Microsoft Lumia 550 vs Microsoft Lumia 640 Dual SIM comparison

Show Only Differences Highlight Differences	Microsoft Lumia 550	Microsoft Lumia 640 Dual SIM
key specs
Display	4.70-inch	5.00-inch
Processor	Qualcomm Snapdragon 210	Qualcomm Snapdragon 400
Front Camera	2-megapixel	0.9-megapixel
Rear Camera	5-megapixel	8-megapixel
RAM	1GB	1GB
Storage	8GB	8GB
Battery Capacity	2100mAh	2500mAh
OS	Windows 10 Mobile	Windows Phone 8.1
Resolution	720x1280 pixels	720x1280 pixels
general
Brand	Microsoft	Microsoft
Model	Lumia 550	Lumia 640 Dual SIM
Release date	October 1, 2015	February 1, 2015
Form factor	Touchscreen	Touchscreen
Dimensions (mm)	136.10 x 67.80 x 9.90	141.30 x 72.20 x 8.80
Battery capacity (mAh)	2100	2500
Removable battery	Yes	Yes
Colours	White, Black	-
Weight (g)	-	145.00
display
Screen size (inches)	4.70	5.00
Touchscreen	Yes	Yes
Resolution	720x1280 pixels	720x1280 pixels
Pixels per inch (PPI)	315	294
hardware
Processor	1.1GHz quad-core	1.2GHz quad-core
Processor make	Qualcomm Snapdragon 210	Qualcomm Snapdragon 400
RAM	1GB	1GB
Internal storage	8GB	8GB
Expandable storage	Yes	Yes
Expandable storage type	microSD	microSD
Expandable storage up to (GB)	200	128
camera
Rear camera	5-megapixel	8-megapixel
Rear flash	LED	LED
Front camera	2-megapixel	0.9-megapixel
software
Operating system	Windows 10 Mobile	Windows Phone 8.1
connectivity
Wi-Fi	Yes	Yes
Wi-Fi standards supported	802.11 b/g/n	802.11 b/g/n
GPS	Yes	Yes
Bluetooth	Yes, v 4.10	Yes
NFC	No	No
Infrared	No	No
USB OTG	No	No
Headphones	3.5mm	3.5mm
FM	Yes	Yes
Number of SIMs	1	2
Wi-Fi Direct	Yes	No
Mobile High-Definition Link (MHL)	No	No
sim 1
SIM Type	Nano-SIM	Micro-SIM
GSM/CDMA	GSM	GSM
3G	Yes	Yes
4G/ LTE	Yes	No
sensors
Compass/ Magnetometer	No	Yes
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Ambient light sensor	Yes	Yes
Gyroscope	No	No
Barometer	No	No
Temperature sensor	No	No
sim 2
SIM Type	-	Micro-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	No

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