Microsoft is keeping the launch of a new flagship Windows Phone until after Windows 10 is released, but that hasn't stopped the company from releasing two new mid-range handsets: the Lumia 640 and the Lumia 640 XL.

The Lumia 640 builds on the foundation Nokia set with the Lumia 635. The display has been upgraded to a 5-inch 720p panel with Gorilla Glass 3 and Glance screen, while internally Microsoft has opted for the aging Snapdragon 400 with a 1.2 GHz quad-core CPU. Camera-wise, the Lumia 640 has an 8-megapixel shooter with f/2.2 optics paired with a 1 MP selfie cam.

This mid-range handset comes in both dual-SIM LTE and dual-SIM 3G models, priced at 159 euros (US$180) and 139 euros (US$155) respectively. It'll be available in April running Windows Phone 8.1 with Lumia Denim.

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The Lumia 640 XL is a larger version of the Lumia 640, packing a 5.7-inch 720p display and an beefier 13-megapixel camera rear camera plus 5 MP selfie cam. Most of the phone's other specs, including the Snapdragon 400 SoC, 1 GB of RAM and 8 GB of internal storage with microSD expansion, remain the same as the Lumia 640.

As this is a larger handset, it will cost you more. Microsoft is pricing the dual-SIM LTE Lumia 640 XL at 219 euros (US$245), or 189 euros (US$210) for the 3G model. The Lumia 640 XL will be available sooner than the Lumia 640, as it's hitting the market in some locations this month.

With every purchase of the Lumia 640 and Lumia 640 XL, Microsoft is throwing in a one year subscription to Office 365. With such attractive prices as well, these could be pretty decent mid-range packages when they hit the market in the coming months.