![Amazon.com: Oura Ring Gen3 Horizon - Smart Ring - Size First with Oura Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - 5-7 Days Battery Life : Patio, Lawn & Garden Amazon.com: Oura Ring Gen3 Horizon - Smart Ring - Size First with Oura Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - 5-7 Days Battery Life : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/71LNmYqsmiL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Oura Ring Gen3 Horizon - Smart Ring - Size First with Oura Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - 5-7 Days Battery Life : Patio, Lawn & Garden
![Amazon.com: Oura Ring Gen3 Horizon - Smart Ring - Size First with Oura Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - 5-7 Days Battery Life : Patio, Lawn & Garden Amazon.com: Oura Ring Gen3 Horizon - Smart Ring - Size First with Oura Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - 5-7 Days Battery Life : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/71IEwzqospL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Oura Ring Gen3 Horizon - Smart Ring - Size First with Oura Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - 5-7 Days Battery Life : Patio, Lawn & Garden
![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/2023/09/oura-2048px-3620-2x1-1.jpg?auto=webp&quality=75&crop=2:1&width=1024)
The Oura Ring Is a $300 Sleep Tracker That Provides Tons of Data. But Is It Worth It? | Reviews by Wirecutter
![The degradation in battery life of a 9-month old Gen 3 ring. More than 50% lost in 7 hours! Trouble started after SpO2 update, which I've had turned off since the day The degradation in battery life of a 9-month old Gen 3 ring. More than 50% lost in 7 hours! Trouble started after SpO2 update, which I've had turned off since the day](https://i.redd.it/cvuymmt0hbm91.jpg)