Microsoft Lumia 640 Dual SIM

Name: Microsoft Lumia 640 Dual SIM
Brand: Microsoft
SKU: SKU2460
Rating: 4.7 (3 reviews)

Microsoft
3 User Ratings
Last Updated: 14th December 2025

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Key Specs

Display 5.00-inch (720x1280)
Processor Qualcomm Snapdragon 400
Front Camera 0.9MP
Rear Camera 8MP
RAM 1GB
Storage 8GB
Battery Capacity 2500mAh
OS Windows Phone 8.1

Market Status Released

Release Date February 2015

Microsoft Lumia 640 Dual SIM Summary

Microsoft Lumia 640 Dual SIM mobile was launched in February 2015. The phone comes with a 5.00-inch touchscreen display offering a resolution of 720x1280 pixels at a pixel density of 294 pixels per inch (ppi). Microsoft Lumia 640 Dual SIM is powered by a 1.2GHz quad-core Qualcomm Snapdragon 400 processor. It comes with 1GB of RAM. The Microsoft Lumia 640 Dual SIM runs Windows Phone 8.1 and is powered by a 2500mAh removable battery.

As far as the cameras are concerned, the Microsoft Lumia 640 Dual SIM on the rear packs 8-megapixel camera. It sports a 0.9-megapixel camera on the front for selfies.

Microsoft Lumia 640 Dual SIM is based on Windows Phone 8.1 and packs 8GB of inbuilt storage that can be expanded via microSD card (up to 128GB). The Microsoft Lumia 640 Dual SIM is a dual-SIM (GSM and GSM) mobile that accepts Micro-SIM and Micro-SIM cards. The Microsoft Lumia 640 Dual SIM measures 141.30 x 72.20 x 8.80mm (height x width x thickness) and weighs 145.00 grams.

Connectivity options on the Microsoft Lumia 640 Dual SIM include Wi-Fi 802.11 b/g/n, GPS, FM radio, and 3G. Sensors on the phone include accelerometer, ambient light sensor, proximity sensor, and compass/ magnetometer.

As of 14th December 2025, Microsoft Lumia 640 Dual SIM price in India starts at Rs. 8,999.

Microsoft Lumia 640 Dual SIM Full Specifications

General

Brand	Microsoft
Model	Lumia 640 Dual SIM
Price in India	₹8,999
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

Display

Screen size (inches)	5.00
Touchscreen	Yes
Resolution	720x1280 pixels
Pixels per inch (PPI)	294

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
Rear flash	LED
Front camera	0.9-megapixel

Software

Operating system

Windows Phone 8.1

Connectivity

Wi-Fi	Yes
Wi-Fi standards supported	802.11 b/g/n
GPS	Yes
Bluetooth	Yes
NFC	No
Infrared	No
USB OTG	No
Headphones	3.5mm
FM	Yes
Number of SIMs	2
Wi-Fi Direct	No
Mobile High-Definition Link (MHL)	No
SIM 1
SIM Type	Micro-SIM
GSM/CDMA	GSM
3G	Yes
4G/ LTE	No
Supports 4G in India (Band 40)	No
SIM 2
SIM Type	Micro-SIM
GSM/CDMA	GSM
3G	Yes
4G/ LTE	No
Supports 4G in India (Band 40)	No

Sensors

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

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Microsoft Lumia 640 Dual SIM User Review and Ratings

4.7★ 3 ratings &
3 reviews

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Great phone with some pros and cons

Hah Karthick (Apr 20, 2015) on Gadgets 360

MIcrosoft is doing great nice phone with 8mp camera and desend front 1mp hd camera 5inch screen . all are great even the price is looks not bad B'coz motog2 also have the same features .but for me when u compare this mobile with Nokia Lumia 730 [B"coz now 730 is priced around 12k in online shopping markets] surely go with Lumia 730 even though 640has 8mp front camera lumia 730has 6.7 mp camera with zies lens its gives a great quality when u compare with 640 and front camera awsome 5mp in 730 ,and 640 1mp there is only one 730has 4.7 inch screen and 640has 5 inch screen

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Great in design, camera , performance and durability

Mukul Manghani (Dec 25, 2015) on Gadgets 360

Beast. Microsoft Lumia 640 Dual SIM smartphone with 5.00-inch 720x1280 display powered by 1.2GHz processor alongside 1GB RAM and 8-megapixel rear camera.

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this is good buy at under 10000 price range

Sandeep Channappa (Nov 16, 2015) on Gadgets 360

this is one of the best under 10000 smartphone. my full hands on review i've posted on http://sandeepyc.blogspot.com/2015/11/lumia640review.html if your interested in detailed review, sample pics also i've posted in this as i cant upload pics here.

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