The smart rings are getting Cardio Effort and VO2 Max data.
By Anna Washenko Oct. 20, 2026 7:00 pm EST Oura Add Engadget on Google: Google DiscoverSmart ring company Oura announced that it is adding two new fitness features. First is Cardio Effort, an assessment of how much strain the wearer has put on their body during activity. The personalized metric will offer five ranges — light, fair, maintaining, building and reaching — that offer a gauge of how the week's activities compare to the individual's baseline. The feature is based on the Training Impulse method and is designed to monitor long-term trends in cardiovascular activity, the company said.
