Specs summary


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


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 or capture video 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 36 days standby time, 1590 minutes (2G), 1050 minutes (3G), 648 minutes Wi-Fi surfing.

A very capable midrange Windows Phone with an attractive price.

- Adam Z. Lein , Pocketnow 

The Lumia 640 is a powerful midrange device that offers great bang for your buck.

- Michael Allison , WMPoweruser 

Reviews summary

Based on 20 reviews

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.”

Show more

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.”

Reviews (7.7/10 Avg. rating)

What Mobile

Great display and excellent battery life with surprisingly good camera

from 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 slightly old processor. Still, Windows Phone is so well optimised that even the latter is only a minor inconvenience... Full review

It's the practical Windows Phone most people can afford

from PCWorld
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 Lumia 640 may be the right phone for you... Full review

One of the best values in mobile

from Pocketnow

The Lumia 640 has all of the features you would expect from a smartphone that’s twice the price.
It’s got 1Gb RAM, a decent 8 megapixel camera, front-facing camera for video calls, a high resolution screen with practically print quality pixel density, the processor is fast, and it even has a (somewhat limited) version of the excellent Glance Mode. It’s certainly a step up from the Lumia 630 and 635 as well as the 5XX series, and it has a few things that put it ahead of the similarly-priced BLU Win HD LTE. Overall, for the price, the Lumia 640 is a pretty nice deal.Full review


Cost makes it extremely affordable

from PhoneArena

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 the spectrum – where it’s an entry-level, low cost handset meant for basic use.

In that regard, the Lumia 640 is a strong performer, especially if we’re to factor in its $130 cost as a prepaid option courtesy of Cricket Wireless. No doubt, the design is unmistakably Lu... Full review


Fits the bill, not the part

from Digit
The Microsoft Lumia 640 is a decent attempt by the company, but it falters in the face of stiff competition from more affordable Android counterparts. An inferior hardware package combined with an underdeveloped app ecosystem make this phone just another option for the budget buyer. Maybe the upcoming Windows 10 update will bring some new life to the Lumia range but till then the Lumia 640 is only meant for Windows Phone loyalists... Full review

Mostly trouble-free and smooth

from Phonedog

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 it’s almost impossible to find compromises that are bad enough to persuade you not to buy it. Right now in the UK, you can buy a Lumia 640 for for £130 unlocked. In the U.S., Cricket Wireless is selling it for $130 and T-Mobile will launch it soon. If you’re looking for a low-p... Full review

Digital Versus

A little re-working for a little price

from Digital Versus
The Lumia 640 takes over with aplomb in the middle of the Windows Phone range without offering any drastic changes. A smooth transition, with a few tweaks here and there, this phone preserves most of the same components as its forerunner. Microsoft is generously marketing this newcomer at a lower price... Full review

A remarkably complete package from Microsoft,

from TechRadar
Despite its somewhat cheap design and the occasional quirk, the Microsoft Lumia 640 is a remarkably well-rounded device. With an excellent screen, a nice camera, strong battery life and good general performance, this is a phone that should easily suit the lifestyles of most... Full review
Phone Scoop

An incredible value for prepaid customers

from Phone Scoop

The Microsoft Lumia 640 is not the cheapest phone available from Cricket Wireless, but it might offer the most bang for the buck.

As is often the case, Microsoft did a bang up job delivering a usable, high-quality piece of hardware that has few detractions. The plastic is a bit slippery and the phone may be heavier than I'd like, but these are modest complaints. The screen is great, call volume is incredible, battery life is respectable, and data performance is as good as it gets in Cricket's stable. Windows Phone isn't for everyone, but those who prefer it will find plenty to li... Full review


Decent attempt but not competitively priced

from TechSpot
Microsoft has blessed the Lumia 640 with a tough, vibrant and minimalist design that’s fairly typical for an entry-level smartphone. For a five inch design, the Lumia 640’s body is reasonably large thanks to sizable bezels. Performance on the Lumia 640 is a letdown. The Qualcomm Snapdragon 400 SoC is starting to show its age, especially when paired with an operating system that loves to throw up splash screens and loading dialogues... Full review


Premium product for an economical price

Love the build of this phone. A sure shot head-turner. The UI is pretty slick and does a better job than my doubly priced Android phone. The Live Tiles is a refreshing change and Here Maps is just amazing.
Love the build of this phone. A sure shot head-turner. The UI is pretty slick and does a better job than my doubly priced Android phone. The Live Tiles is a refreshing change and Here Maps is just amazing. Less
Rohit Kumar

Functionality at its best

I got this phone after reading a lot of reviews and believing its much created hype. To be true, I found it to be very true and it was all worth the wait. This Windows-10 ready phone is something that is your perfect partner when you have a lot of work pressure and you need to provide instant result... More
I got this phone after reading a lot of reviews and believing its much created hype. To be true, I found it to be very true and it was all worth the wait. This Windows-10 ready phone is something that is your perfect partner when you have a lot of work pressure and you need to provide instant results. Office 365 subscription simply shoots the value for money quotient of the phone up to the sky. The phone’s battery is long-lasting and can easily last for a day. Multi-tasking is certainly one of the best characteristics of the phone. Camera of the phone impresses when the lighting conditions are good. I had considered a lot of other options and am glad that I made this choice. Less

Prices (Where to Buy)

Online Buying Options



Manuals / User Guides Helpful Links Carriers Who Offer This Phone

AT&T, Cricket, MetroPCS, T-Mobile

Review Sources Have a question?

Visit the Microsoft Lumia 640 Q&A Forum to ask the community a question or help others.

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Full Specs

Release date April 30, 2015
Regions available USA, United Kingdom, Asia, Europe, North America, Australia, South America, Africa
850/900/1800/1900 MHz
850/900/1900/2100 MHz
SIM Card Micro-SIM
Dual SIM No
Operating System Windows Phone 8.1

Compare Windows Phone Smartphones

Processor Qualcomm Snapdragon 400 Quad core 1.2 GHz
Internal Flash Memory
8 GB
Digital compass Yes
FlightMode Yes
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, Headset, Manual, Standard Battery
Power & Battery
Type Lithium-Ion (Li-Ion), 2500 mAh
Removable Battery Yes
Wireless Charging No
Fast Charging No
Video Playback Time 516 minutes
Wi-Fi Surfing Time 648 minutes
3G Surfing Time Unknown
4G Surfing Time Unknown
Talk Time Up to:
1590 minutes (2G)
1050 minutes (3G)
Standby Time Up to: 36 days
Physical Characteristics
Design Type Bar
Multi-Use Smart Phone / PDA Yes
Material Plastic
Colors Black, Cyan, Orange, 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
(5.1 ounces)
Water Resistant / Waterproof Unknown
Rugged Design No
IP Rating No
Antenna Type Internal
Changeable Faceplates No
Display / Screen
Type Color
Technology LCD (IPS)
Colors 16.7 million
Resolution 720 x 1280 pixels
Pixel Density 294 pixels
Size 5 inches
3D No
Secondary Display No
Sensors Ambient Light, Proximity, Motion / Accelerometer
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 Browsing Type HTML, HTML 5
Browser Internet Explorer Mobile
Javascript Yes
Flash No
Email Yes
Email Protocols POP3, IMAP, SMTP, Microsoft Exchange
Additional Email Features No
Messaging Services 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
WiFi 802.11 b/g/n
WiFi Encryption No
Mobile Hotspot Yes
Expansion Slots Yes
Expansion Slots Info MicroSD, MicroSDHC, microSDXC (up to 128 GB)
PC Synchronization Yes
TV-out No
DLNA Support Yes
UMA Support No
Data Tethering Compatibility Yes
Java Applications No
Brew Applications No
ECML / Digital Wallet No
PictBridge No
Main Camera  
Aperture Unknown
Resolution 8+ megapixels
Dual Lens No
Zoom 4x digital
Flash 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
Front Camera  
Zoom No
Additional Front Camera Info 0.9 Megapixels
Video Recording Parameters HD (1280 x 720 pixels)
Audio / Video
Audio Playback Yes
Audio Formats MIDI, MP3, AAC, WMA, WAV, AMR-NB
Radio Yes (FM)
Video Playback Yes
Video Playback Formats 3GP / 3GPP, H.264 / AVC, MPEG-4
Mobile TV No
Streaming Video Yes
External Speakers Yes
Headset Jack 3.5mm
Custom Ringtones Yes
Vibration Alert Yes
Downloadable Ringtones Yes
Ringtone Composer No
Ringer ID Yes
Haptic Feedback Vibration Yes
Speakerphone Yes
To-Do / Task List Yes
Calendar Yes
World Clock Yes
Alarm Yes
Stopwatch Yes
Timer Yes
Calculator Yes
Currency Converter No
Document Viewer DOC, DOCX, PDF, PPT, PPTX, XLS
Weather Yes
Stocks No
Maps Yes
Notepad Yes
Voice Memos / Recorder Yes
Games Downloadable
Apps Downloadable
Included Software / Apps No
Additional Comments Also available in a dual-SIM model.
Related Links Microsoft Lumia 640 Manual (PDF)
Microsoft Lumia 640 Reviews
Where to buy Microsoft Lumia 640
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