Note: We may earn commissions (at no cost to you) if you buy through links on our site. Learn more.
NOTE: This model is discontinued and may no longer be available to purchase new. See the latest cell phones or compare used prices.

Microsoft Lumia 640 review

7.7/10 AVG.

  • Microsoft Lumia 640
  • Microsoft Lumia 640
  • Microsoft Lumia 640
  • Microsoft Lumia 640
  • Microsoft Lumia 640

Informr score
The Microsoft Lumia 640 currently has an Informr score of 7.7 out of 10. This score is based on our evaluation of 20 sources including reviews from users and the web's most trusted critics.

What's good

  • Price
  • Solid mid-tier performance
  • Storage expansion with microSD
  • Dual SIM variants in select markets

What's bad

  • Weak front-facing camera
  • Slippery grip

With the latest entry in their mid-tier Lumia series, Microsoft hopes to address some of the complaints of the previous 630 series. With improved stats and some slight design tweaks, the phone appears to offer a competent option for those looking for a Windows Phone at an affordable price. Do the specs match its performance? Let’s check out the reviews!

The 640 features the same unibody design as previous models. It’s high-grade polycarbonate shell received mixed reviews on grip but all agreed that it looks great and offers a rugged, well-built feel in the hand. Available in multiple colors and matte or glossy finishes, it offers plenty of options to make the phone appealing. Many reviews noted that the glossy shells were prone to fingerprints. Expert Reviews UK spent some time with the handset and noted, “Its sturdy unibody design is comfortable to hold and its angular edges give you plenty of grip.”

The phone sports a 5-inch 720p IPS LCD screen. Many reviewers were blown away by the contrast and color range offered by the display, second guessing if it was an IPS or OLED display. While the resolution is certainly well below flagship models, it is fitting for a mid-tier device. With the tile-based Windows Phone interface, reviews report it offers plenty of clarity and detail for easy operation. Expert Reviews UK called the display, “Easily a cut above any other budget smartphone panel we've seen in recent months.”

Power the Lumia 640, you’ll find 1.2GHz quad-core Snapdragon 400 with 1GB of RAM. While these specs might be a bit lackluster in the Android or iOS market, it appears to be plenty of power to keep the Windows Phone experience running smoothly. With an update to Windows 10 promised from Microsoft, performance should only improve. Expert Reviews UK found it “Felt very quick and snappy when we were scrolling through the phone's Start screen and various menu settings.”

With 8GB of internal storage, the handset offers a fair amount of storage out of the box. If you plan to store media for on-the-go enjoyment or install a lot of large apps, you should count on expanding with a microSD card. Fortunately, support for up to 128GB cards means you can double or quadruple the storage on the phone for an affordable price.

As with most Lumia devices, the cameras on the 640 receive good reviews. The rear camera appears to handle lighting well and produce respectable results for an 8MP shooter. Unfortunately, if you’re a fan of selfies or video chat, the 1MP wide-angle front-facing chat and selfie camera was less popular. Notebook Review called it “grainy and inaccurate” while many other reviews found weak low-light performance and general shortcomings.

To keep everything running, Microsoft went with a 2,500mAh battery. While Microsoft claims all day battery life, reviews were vague on what to expect. However, with the specs listed, a day of moderate usage should be no problem. Heavy users might look for an external battery pack or keep a charger on hand. For a limited time, Microsoft plans to offer a free year of Microsoft Office 365 and 1TB of OneDrive storage, if you’re a fan of either service, this makes the already affordable phone a steal.

Overall, the phone received great reviews. While Windows Phone is still struggling to find a foothold in the market, Microsoft continues to offer compelling options for fans of the ecosystem. Trusted Reviews summed up the phone well, stating, “It's got the makings of a solid, affordable 5-inch Android alternative.”

Operating system
Windows Phone
1.2 GHz
Screen Size
8+ MP

What the Critics Are Saying...

What Mobile

Microsoft has managed a very impressive feat with the Lumia 640. They’ve successfully fixed all the shortcomings which tainted the original 635 and managed to keep it within the same price bracket. There’s little to be disappointed about here apart from the uninspiring design and slightl...

- Thomas Wellburn, What Mobile

By that metric, you may find yourself quite willing to put up with any quirks that the Lumia 640 offers. I will argue stridently that you’ll enjoy the Lumia 830 more. But in the midrange phone space, price can be a major sticking point. In that regard, Microsoft’s staunchly midrange Lumi...

- Mark Hachman, PCWorld

A very capable midrange Windows Phone with an attractive price.

- Adam Z. Lein, Pocketnow

Everyone is eagerly awaiting for the next-gen Lumia smartphone, the one that’s specs heavy, feature-rich, and heavy handed against the competition. Well, we’re going to have to wait longer because the Microsoft Lumia 640 isn’t that handset. Rather, it’s on the other side of t...

- John V., PhoneArena

Microsoft has done well releasing mid and low-end phones over the past couple of years. It has cemented itself as a solid option for the budget-conscious smartphone buyer. With the Lumia 640, that reputation is even stronger. This is an incredible phone for its price point. It performs admirably and...

- Cam Bunton, Phonedog

Prices (Where to Buy)

Common Questions

We've got you covered! Download a free PDF copy of the Microsoft Lumia 640 user manual here.

Microsoft backs up the Lumia 640 with a 1 Year parts & labour warranty.

If your Lumia 640 has problems and is still within its warranty period, you could contact Microsoft support or the retailer you purchased the phone from. You'll find Microsoft's contact information here. If your phone is off warranty and needs repair for a physical problem such as a broken screen or bad battery, you should visit an authorized service centre or a local phone repair shop. You can also connect with others in The Informr Community Forum to find and share answers to questions.


Manuals / User Guides Helpful Links Share / Embed

Maybe one of your friends will find this review helpful? Please help us spread the word.

Quick view

Screen Size

The Microsoft Lumia 640's screen size is 5 inches with 720 x 1280 pixels resolution.

1.2 GHz

There is a Qualcomm Snapdragon 400 Quad core 1.2 GHz processor (CPU).


The phone runs on the Windows Phone 8.1 operating system (OS).

8+ MP

You can take photos with the phone's onboard 8+ megapixel camera.

There is also a secondary front facing camera useful for video chat and self portraits.

8 GB

Internal memory is 8 GB. An external, MicroSD, MicroSDHC, microSDXC (up to 128 GB) expansion slot is available for increased storage capacity.


The phone is powered by a Lithium-Ion (Li-Ion), 2500 mAh battery. Microsoft's performance ratings are 1590 minutes, 648 minutes Wi-Fi surfing.

Lumia 640 Specs

Release date April 30, 2015
Regions available USA, United Kingdom
Mobile / Cellular Data
850/900/1800/1900 MHz
850/900/1900/2100 MHz
SIM card size
Dual SIM No
Operating System Windows Phone 8.1

Compare Windows Phone Smartphones

Processor Qualcomm Snapdragon 400 Quad core 1.2 GHz
Internal Storage 8 GB
Hearing Aid Compatible Yes
Noise Cancellation Yes
SAR Head: 1.43 W/kg
Body: 0.68 W/kg
Languages English
Manufacturer Warranty 1 Year
Accessories Included AC Charger, Manual, Standard Battery, Headset
Power & battery
Battery Type Lithium-Ion (Li-Ion)
Battery Capacity 2500 mAh
Removable Battery Yes
Wireless Charging No
Fast Charging No
Video Playback Time Up to: 516 minutes
Internet Use (Wi-Fi) Up to: 648 minutes
Internet Use (Celluar) Unknown
Talk Time Up to: 1590 minutes
Standby Time Up to: 36 days
Physical Characteristics
Design type Bar
Multi-Use Smart Phone / PDA Yes
Material Plastic
Colors Cyan, Orange, Black, White
Dimensions [H x W x D] 14.1 x 7.2 x 0.9 cm (5.6 x 2.8 x 0.4 in)
Weight 145 grams
Water Resistant / Waterproof Unknown
Rugged design No
IP Rating No
Display / Screen
Type Color
Technology LCD (IPS)
Colors 16.7 million
Resolution 720 x 1280 pixels
Pixel density 294 pixels
Size 5 inches
Secondary Display No
Sensors Ambient Light, Proximity, Motion / Accelerometer, Digital Compass
Graphics Yes
Themes Yes
Backlit Illumination Yes
Zoom / Magnification Yes
Screen Orientation Lock Yes
Multi-Touch Yes
Fingerprint-Resistant Coating No
Additional Display Features Capacitive touchscreen, Corning Gorilla Glass 3
Input / Navigation
Sleep / Wake Key Yes
Home Key Yes
Mute Key No
Input Type Touchscreen
Navigation Type Touchscreen
Predictive Text Entry Yes
Physical keyboard No
Voicemail Key No
Any Key Answer No
Voice Commands Yes
Keypad/Screen Lock Yes
External Volume Control Yes
External Media Playback Controls No
Fingerprint Sensor No
Call Management
Wi-Fi Calling Unknown
Voice over LTE (VoLTE) Unknown
Contact List Capacity Depends on system memory
Multiple Numbers Per Contact Email address, Other fields
Contact Groups Yes
Auto Answer No
Voice Activated Dialing Yes
Photo Caller ID Yes
Web / Email / Messaging
Web Browser Yes
Email Client Yes
Email Protocols POP3, IMAP, SMTP, Microsoft Exchange
Additional Email Features -
Messaging SMS, MMS, IM
Push-to-talk (PTT) No
USB Micro-USB 2.0
USB OTG Support No
Infrared No
Bluetooth 4.0
Bluetooth Profiles A2DP, AVRCP, OPP/FTP, HID, HFP, HSP, PAN
Bluetooth Audio Codecs SBC
WiFi 802.11 b/g/n
WiFi Encryption No
Mobile Hotspot Yes
Memory Expansion Slot Yes
Expansion Slot Info MicroSD, MicroSDHC, microSDXC (up to 128 GB)
PC Synchronization Yes
TV Out No
DLNA Support Yes
Data Tethering Compatibility Yes
Java Applications No
Brew Applications No
ECML / Digital Wallet No
Main Camera
8+ megapixels
4x digital
Yes (LED)
Additional Rear Camera Info
Auto focus, Effects, Face detection, Geotagging, Multi-shot, Panorama, Self-timer, HDR
Video Recording Formats
3GP / 3GPP, H.264 / AVC, MPEG-4
Video Recording Parameters
Full HD (1920 x 1080 pixels), 30 fps, up to 0 minutes
Front Camera
Additional Front Camera Info
0.9 Megapixels
Video Recording Parameters
HD (1280 x 720 pixels)
Audio / Video
Audio Playback Yes
Audio Formats AAC, AMR-NB, MIDI, MP3, WMA, WAV
Radio Yes (FM)
Video Playback Yes
Video Playback Formats 3GP / 3GPP, H.264 / AVC, MPEG-4
Streaming Video Yes
External Speakers Yes
Headset Jack 3.5mm
Custom Ringtones Yes
Vibration Alert Yes
Downloadable Ringtones Yes
Ringer ID Yes
Haptic Feedback Vibration Yes
Speakerphone Yes
To-Do / Task List Yes
Calendar Yes
World Clock Yes
Alarm Yes
Stop Watch Yes
Timer Yes
Calculator Yes
Currency Converter No
Document Viewer Yes
Viewable document types XLS, PPT, PPTX, DOC, DOCX, PDF
Weather Yes
Stocks No
Maps Yes
NotePad Yes
Voice Memos / Recorder Yes
Games Downloadable
Apps Downloadable
Included Software / Apps -
Additional comments

Also available in a dual-SIM model.

Related Links Manual (PDF)
Microsoft Lumia 640 Reviews
Where to buy Microsoft Lumia 640
Suggest a correction