The Lumia 640 is meant to be the Lumia 630 successor and the Lumia 640 XL will be replacing the Lumia 1320. The follow lists show the most important tech specs for both phones. The Lumia 640 will include the following tech specs:

5-inch 720p IPS display at 294 ppi, Corning Gorilla Glass 3 1.2 Ghz Quad-Core Snapdragon 400 SoC 2500 mAh battery Single SIM (LTE), dual SIM (3G) variations 3G/ LTE variations 8 megapixel rear-facing camera 1 megapixel front-facing camera 8GB internal storage 1GB of RAM MicroSD card slot expandable to 128GB Cyan, black, white and orange color variations

The Lumia 640 XL will include the following tech specs:

5.7-inch 720p IPS display at 259 ppi, Corning Gorilla Glass 3 1.2 Ghz Quad-Core Snapdragon 400 SoC 3000 mAh battery Single SIM (LTE), dual SIM (3G) variations 3G/ LTE variations 13 megapixel rear-facing camera 5 megapixel front-facing camera 8GB internal storage 1GB of RAM MicroSD card slot expandable to 128GB Cyan, black, white and orange color variations

As you can see the XL version of the phone has practically all the same technical specs with the difference that it’s a larger phone, better camera, and bigger 3000 mAh battery. The Lumia 640 XL also features a 13 megapixel front-facing camera with a ZEISS optics lens and a 5 megapixel camera optimized for selfies.

Both phones will initially ship with Windows Phone 8.1, but they are compatible to Windows 10, when the operating system releases later this year. With the inclusion of Office 365 Personal free for a year, users will be able to enjoy the suite of apps not only on their phones, but they also get the right to install the Office apps on their tablets, Windows PCs, or Mac computers.  As for pricing, the 3G model will start with a price of 139 Euros ($155) for the Lumia 640 and 189 Euros ($211) for the Lumia 640 XL. The 4G LTE model will cost 159 Euros ($178) and 219 Euros ($245) for the Lumia 640 and 640 XL respectably. Microsoft is preparing to launch the Lumia 640 in April with LTE and 3G variants, while its sibling, the Lumia 640 XL will be available in March, also with LTE and 3G variants.   Source Lumia 640, Lumia 640 XL All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.