Microsoft has accidentally listed two upcoming Lumia devices on the Microsoft Store ahead of their launch next week, revealing their official design and specifications way too early.

The Lumia 950 and Lumia 950 XL have already been leaked extensively over the past few months, but their listing in the Microsoft Store confirms many of the details that were previously rumored, including their names. These devices will be the first to launch with Windows 10 Mobile on-board, with both expected to support the operating system's full feature set.

Both devices feature 1440p displays: 5.2-inches on the Lumia 950, and 5.7-inches on the Lumia 950 XL. We're also looking at 20-megapixel optically stabilized cameras on both handsets with Zeiss f/1.9 optics, as well as 5-megapixel front cameras, 32 GB of expandable storage, 3 GB of RAM, Qi wireless charging, USB Type-C, iris scanners, and removable batteries.

The Microsoft Lumia 950, courtesy of an image captured by Windows Central

The two devices differ in SoC: the Lumia 950 gets Qualcomm's Snapdragon 808, while the larger 950 XL gets the Snapdragon 810. We're also looking at different battery capacities, with the 950 featuring a 3,000 mAh battery, and the 950 XL a 3,300 mAh battery.

The design of both handsets looks pretty plain, judging by the renders posted to the Microsoft Store, but we'll reserve final judgment on their polycarbonate bodies until we see the devices in the flesh.

The Microsoft Lumia 950 XL

Considering we now know pretty much everything about the Lumia 950 and Lumia 950 XL, we're only waiting to hear what these devices will cost and when they'll go on sale. Expect to hear these details, along with information on a Surface Pro 4 and Band 2, at Microsoft's hardware-focused event on October 6th.