Microsoft Lumia 640 Dual SIM

 

Release date	February 2015
Form factor	Touchscreen
Dimensions (mm)	141.30 x 72.20 x 8.80
Weight (g)	145.00
Battery capacity (mAh)	2500
Removable battery	Yes
SAR value	NA

Display

Screen size (inches)	5.00
Touchscreen	Yes
Touchscreen type	Capacitive
Resolution	720x1280 pixels
Pixels per inch (PPI)	294
Colours	16M

Hardware

Processor	1.2GHz  quad-core
Processor make	Qualcomm Snapdragon 400
RAM	1GB
Internal storage	8GB
Expandable storage	Yes
Expandable storage type	microSD
Expandable storage up to (GB)	128

Camera

Rear camera	8-megapixel
Flash	Yes
Front camera	0.9-megapixel

Software

Operating System	Windows Phone 8.1
Java support	Yes
Browser	HTML

Connectivity

Wi-Fi	Yes
Wi-Fi standards supported	802.11 b/ g/ n
GPS	Yes
Bluetooth	Yes
NFC	No
Infrared	No
DLNA	No
Wi-Fi Direct	No
MHL Out	No
HDMI	No
Headphones	3.5mm
FM	No
USB	Micro-USB
Charging via Micro-USB	Yes
Proprietary charging connector	No
Proprietary data connector	No
Number of SIMs	2
SIM 1
SIM Type	Micro-SIM
GSM/ CDMA	GSM
3G	Yes
SIM 2
SIM Type	Micro-SIM
GSM/ CDMA	GSM
3G	Yes

Sensors

Compass/ Magnetometer	Yes
Proximity sensor	Yes
Accelerometer	Yes
Ambient light sensor	Yes
Gyroscope	No
Barometer	No
Temperature sensor	No