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(Pocket-lint) - In June 2021 we first heard rumors of an upcoming Facebook smartwatch (or Meta, as it's now called), then in October an image of the device surfaced. surfaced.

Now Dutch outlet LetsGoDigital has uncovered patent information that says more about the device.

As previously reported, the device will have a detachable screen, but now we have information on how it might work.

The patent details two smartwatches, one with a square screen very similar to the image leaked in October, and the other with a more traditional circular bezel.

As seen in the image above, the model with the round screen is designed to be rotated, which will allow you to select different camera lenses.

We'll be interested to see if the rotation mechanism is only for camera selection or if the watch will have a single sensor and if the rotation of the screen puts different lenses in front of it, either way, it's is an intriguing concept.

The screen on both models will be held in place by magnets and is detachable. The round dial version will have five fixed positions it can be rotated to, while the square watch will have four.

Cameras can be used to take photos and videos, as you'd expect, but the documentation hints that Meta has bigger plans for watches.

The documentation focuses on the planned AR and VR integrations and suggests that the many built-in sensors will help with this in some way.

The watches house body temperature sensors, heart rate monitors, motion sensors, and activity recognition sensors.

These sensors are pretty common among all smartwatches, so we're not sure exactly how Meta plans to use them to further VR and AR experiences, but we're excited to find out.