A couple of months after it was originally unveiled, Cricket Wireless launched the Lumia 640 for $129.99 with no annual contract - but the impressive Windows phone is now available for just $21.99.
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The Microsoft Store has been out of Lumia 640 XL stock for several weeks, but now, it's again offering the AT&T model for $99.99, while the unlocked version can be picked up for $149.
Microsoft's impressive Lumia 640 XL is now available for just $69.99 in two configurations: the AT&T model in black with 4G LTE; or unlocked, in a selection of colors, but without 4G connectivity.
While AT&T recently slashed the cost of the Lumia 640 XL to $99, you can now get an unlocked model of the supersized Windows phone for just $79.99, available in black, white, orange or blue.
Microsoft has marked down the AT&T model of the Lumia 640 XL to just $99, which is two thirds of its previous price of $149. It's available without a contract, and you can upgrade it to Windows 10.
While most retailers have been selling the Lumia 640 for around £110-£130 SIM-free over the last twelve months, its price is now falling, following the introduction of the newer Lumia 650 this year.
Microsoft has cut a third off the price of its supersized Lumia 640 XL, bringing it down to $199 unlocked - and it appears to be a permanent price cut as the company phases out its older handsets.
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BLU has launched its Win JR LTE and Win HD LTE in Europe, priced from just £69/€99; and in India, starting at Rs.5,999. Both devices include 4G, dual-SIM support, and the latest Snapdragon 410 CPUs.
The Microsoft Store continues to sell the 5.7-inch Lumia 640 XL for £219 SIM-free - but you can now buy the gigantic Windows Phone in the UK for a lot less: it's currently available from only £159.99.
Microsoft is now rolling out the latest non-preview version of its mobile OS to the Lumia 830 in India, while Lumias 930, 1320 and 1520 are all getting new firmware updates there too.
Microsoft's latest non-preview OS update is now available for XOLO's newest Windows Phone, the Win Q1000. Update 2 adds new features such as more granular app permissions and a revised Settings hub.
Microsoft said in September that its then-new Lumia 735 would be available in the US 'soon'. Nine months later, the 735 has finally launched on Verizon, with more storage and a free Office 365 sub.
Microsoft's new 4G Windows Phone, the 5-inch Lumia 640, is now on sale via T-Mobile with a full retail price of just under $130, but the device won't be available to buy at the carrier's stores.
Microsoft's extra-large Windows Phone will be available to buy from AT&T next week for under $250 off-contract, featuring a 5.7" HD display, 4G LTE, Snapdragon 400 and 13MP camera with ZEISS optics.
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While Best Buy is currently selling the Lumia 635 for $39.99 off-contract, another retailer is now offering the 4G handset for even less - and it can be updated to Windows Phone 8.1 Update 2 as well.
Microsoft's Lumia 635 on AT&T is the latest handset to receive Windows Phone 8.1 Update 2, which includes features such as MKV video playback and Bluetooth keyboard support.
It appears that Microsoft's Lumia 640 will finally be available to buy from T-Mobile US next week - but it also seems that the carrier won't actually be stocking the device in its retail stores.
The Lumia 640 isn't a perfect device by any means - but Microsoft has built a truly impressive low-cost smartphone, with a beautiful display, decent camera, solid performance, and superb value.
Not all handsets will get Update 2, but more devices are starting to receive it, and the latest is the BLU Win HD LTE, which the company has confirmed will also be upgraded to Windows 10 Mobile.
Not all handsets will be upgraded to Windows Phone 8.1 Update 2, but one handset that is getting that update - right now, in fact - is the HTC One M8 for Windows on Verizon Wireless.
It's not the biggest Windows Phone ever, but with a 5.7-inch HD display, the Lumia 640 XL is still pretty huge. But is the affordable handset as good as it looks, or is big not better after all?
A few weeks after Neowin exclusively revealed the first image of LG's new Windows Phone for Verizon, full details of the device have now emerged - but as we suspected, it's no high-end flagship.
The 5.7-inch Lumia 640 XL is now available to buy in the UK, priced at £219 SIM-free, and like its smaller sibling, the Lumia 640, it includes a free one-year Office 365 subscription for your PC.
Microsoft launched the Lumia 640 in India earlier this month, priced at Rs.11,999 - but you can now buy the device with Rs.2,000 off the regular price, plus a free one-year Office 365 subscription.
The Lumia 640 is now listed on the Microsoft Store as 'coming soon', priced at just $89 - a remarkably low price for a handset with a 5" 720p display, Snapdragon 400, 4G LTE, 1GB RAM and 8MP camera.
After adding support for MKV video playback to Windows 10 last year, Microsoft has now brought the same feature to Windows Phone 8.1 Update 2 - but that means it won't be available for everyone.
Update 2, or GDR2 as it's also known, was unofficially made available to a number of Lumia devices. It brings some UI changes, a new way of viewing Settings and support for new devices.
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Microsoft has confirmed that Windows Phone 8.1 Update 2 - which debuted on the company's latest handsets, the Lumia 640 and 640 XL - will come to existing devices... but not all of them.
Microsoft has announced the launch of its new Windows Phones in the UK: the 5-inch Lumia 640, which will be priced from £99.99 off-contract; and the 5.7-inch Lumia 640 XL, priced from £219.
Microsoft has released the mid-range Lumia 640 and Lumia 640 XL in India. Both phones are the first to come with Windows Phone 8.1 Update 2 pre-installed which offers bluetooth keyboard compatibility.
You can now buy the Lumia 640 in the United Kingdom for £170, although it's only available in orange and black, with no sign of the cyan option revealed at last month's Mobile World Congress.
Microsoft has sent out invites to a launch event for its new Lumia 640 and 640 XL Windows Phones in India on Tuesday April 7, with pricing rumored to start at around Rs.9,999.
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Microsoft has confirmed via a product listing page that Windows Phone 8.1's Update 2 will bring compatibility with Bluetooth keyboards, something the operating system currently lacks.
Microsoft announced two new additions to its smartphone range today - the Lumia 640 and 640 XL - and we had some hands-on time with both of them, which included some intriguing OS observations.
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Development continues on Windows 10 for phones, but it seems another update is on the way to Microsoft's mobile OS, as its Dev Center site now includes references to 'Windows Phone 8.1 GDR2'.