The  Oura Ring Gen remains one of our favorite smart rings on the market and our pick for one of the best smart rings you can buy. While this space got more attention when the new Samsung Galaxy Ring launched this year, Oura has plugged away at the smart ring space, and the brand released a new generation smart ring, the Oura Ring 4, earlier this fall. You know what that means: its third-generation smart ring is now on a rare sale at Amazon.

With this sale, you can save anywhere from $50 to $100, depending on your choice of style and finish.  

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This is one tech product that rarely goes on sale. As someone who monitors the smart ring industry and keeps track of prices and discounts, I typically see the Oura Ring go on sale twice a year: during Cyber Week.

Both the circular Horizon and flat-topped Heritage styles are on sale, but note some colorways may not be available in all sizes. 

I own the Horizon Oura Ring, and I can't recommend it enough for sleep, activity, and holistic wellness tracking. It offers around five days of battery life, is compatible with both iOS and Android devices (unlike the new Galaxy Ring), and is made with a titanium lightweight build.

Every morning I get a readiness score and a sleep score based on yesterday's sleep, stress, activity, and more. It monitors my heart rate, heart rate variability, blood oxygen, and body temperature -- and takes all that data to offer actionable insights into my daily health regimen, such as when to take breaks during the day, stretch my legs, or wind down at night. 

There are many competitive features included in the Oura Ring, such as how many apps you can sync Oura with, including Strava, Natural Cycles, and more. The company has also unveiled, within the past few months, several new features that give you more insights into your overall health. There's a new heart health feature where you can learn your cardiovascular age, a new feature for menstrual cycle and pregnancy insights, and a new AI health advisor feature, where you can get fitness and wellness advice from an AI coach. 

Some of my colleagues also love and use the Oura Ring. ZDNET's Allison Murray complimented Oura's customer service after her ring's battery kept faltering. Oura sent her a brand new smart ring, no questions asked. 

This sale won't last for long, so if you've been in the market for an Oura Rin, now's a good time to buy it.