Oura smart rings are up to 30 percent off for Black Friday

Oura is hosting a Black Friday sale on many of its more popular smart rings. Perhaps the most notable deal is for the Oura Ring 4, which is down to $249. This is a discount of 29 percent, as it typically costs $349. The sale applies to the black colorway.

The Ring 4 actually topped our list of the best smart rings, and with good reason. It’s comfortable to wear for long periods of time, which is always nice. It’s a visually striking ring. We also appreciated the size options, as it fits fingers from size…