This Archos device will be the company's first Windows 10 Mobile and, if the video above is anything to go by, it will further improve Microsoft's smartphone market penetration - in Europe anyway.
The Archos is a budget device, however its screen and overall build look pretty impressive. The Cesium 50 packs dual SIM slots, expandable memory and a replaceable battery. The 5" IPS screen is 720p and there are 8mp (back) and 5mp (front) cameras. A pretty good spec considering its target price.
Even more noteworthy is the speed and responsiveness of the phone, especially as it packs both a low-end CPU (the Snapdragon 210) and a pre-release build of Windows 10 Mobile.
Archos is a popular brand in its homeland France, however I'd expect its appeal will be just as strong in neighbouring Italy and Spain.