The Black Ring-Two Videos

This case involves a black ring-shaped object seen flying at a high altitude.

This unusual O-shaped object has been captured in two separate videos by
different witnesses.

The first video was recorded in 2021 by Reddit user CapitolMountain128,
while the second one was filmed in Germany by another user, jeans1986.

Despite the clear footage, it's difficult to determine what this object could be.