![Ari Tulla, Elo co-founder, and Anne Valta, Cycling Masters World Champion, tried Oura Ring. Here's what happened. Ari Tulla, Elo co-founder, and Anne Valta, Cycling Masters World Champion, tried Oura Ring. Here's what happened.](https://images.ctfassets.net/9slb9bdvurju/13qR1VPOR2vKSpLvdvvTuV/c2d80f53bbaee930e00c403bde24fc2d/oura_ring_review_screenshot_3.png?w=624&h=435&q=100&fm=png&bg=transparent)
Ari Tulla, Elo co-founder, and Anne Valta, Cycling Masters World Champion, tried Oura Ring. Here's what happened.
![Heart rate (A) and distal skin temperature (B) measured with the Oura... | Download Scientific Diagram Heart rate (A) and distal skin temperature (B) measured with the Oura... | Download Scientific Diagram](https://www.researchgate.net/publication/359804447/figure/fig2/AS:1142493412364310@1649403064838/Heart-rate-A-and-distal-skin-temperature-B-measured-with-the-Oura-ring-during-sleep.png)
Heart rate (A) and distal skin temperature (B) measured with the Oura... | Download Scientific Diagram
![Sian Allen on Twitter: "MENSTRUAL CYCLE TRACKING Oura measures body temperature, Whoop doesn't but tags other metrics for analysis if you self-report your cycle in their journal. I can clearly see the Sian Allen on Twitter: "MENSTRUAL CYCLE TRACKING Oura measures body temperature, Whoop doesn't but tags other metrics for analysis if you self-report your cycle in their journal. I can clearly see the](https://pbs.twimg.com/media/FAjM9UnVgAA5arR.jpg)
Sian Allen on Twitter: "MENSTRUAL CYCLE TRACKING Oura measures body temperature, Whoop doesn't but tags other metrics for analysis if you self-report your cycle in their journal. I can clearly see the
![The Oura Ring Is a $300 Sleep Tracker That Provides Tons of Data. But Is It Worth It? | Reviews by Wirecutter The Oura Ring Is a $300 Sleep Tracker That Provides Tons of Data. But Is It Worth It? | Reviews by Wirecutter](https://cdn.thewirecutter.com/wp-content/media/2020/09/oura-lowres-1.jpg)
The Oura Ring Is a $300 Sleep Tracker That Provides Tons of Data. But Is It Worth It? | Reviews by Wirecutter
![The Oura Ring Is a $300 Sleep Tracker That Provides Tons of Data. But Is It Worth It? | Reviews by Wirecutter The Oura Ring Is a $300 Sleep Tracker That Provides Tons of Data. But Is It Worth It? | Reviews by Wirecutter](https://cdn.thewirecutter.com/wp-content/media/2021/07/oura-2048px-0459.jpg?auto=webp&quality=60&crop=1.91:1&width=1200)