I wasn’t a fitness-tracker person—until I tried the Oura Ring. I’d tested both a Fitbit and an Apple Watch, but I never liked the feeling of a bulky watch strapped to my wrist—especially one that buzzed with notifications. The Oura Ring, by contrast, looks like a simple metal wedding band yet quietly tracks a staggering range of health metrics. I’ve now worn my Oura Ring Gen 3 every day for over three years. Yes, it’s a a splurge—but good news: For the first time ever, there’s an Oura ring Prime Day sale. Right now, find the newer Oura Gen 4 for 15% off.
Oura Ring 4
Amazon
Note: Prices vary according to colorway.
How the Oura works
The Oura smart ring is a waterproof, wearable fitness tracker designed to be worn on your middle or pointer finger. It uses built-in sensors that monitor a variety of health metrics, including sleep, heart rate, temperature, and activity levels. Unlike a smartwatch, it doesn’t vibrate or demand your attention—it simply and silently collects data, which syncs to the Oura app on your phone via Bluetooth. Together, these stats offer a snapshot of how your body is functioning and recovering.
What the Oura tracks
The Gen 3 and Gen 4 Oura Rings track the same core metrics—the Gen 4 just offers a sleeker design, longer battery life, and (supposedly) improved sensor accuracy and overall functionality. While I can’t personally vouch for the Gen 4 yet, here’s a quick look at the data both versions collect.
The ring provides detailed insights into your sleep patterns (light, deep, REM) to help you gauge rest quality, along with resting heart rate and heart rate variability (HRV)—key markers of recovery and overall health. It also measures blood oxygen levels and picks up subtle shifts in body temperature and breathing rate during sleep, which can signal illness.. During the day, it counts steps, detects various activities, and estimates calories burned.
All this data feeds into a Readiness Score (most days, I fall within the 75 to 95 range) that reflects how ready your body is for the day. For women, it offers menstrual cycle tracking and syncs with popular period apps. It also estimates cardio fitness, which gives you a glimpse into your heart and lung endurance. Everything uploads to the Oura app, where it’s presented in a clear, digestible format.
My honest review
Pros
It’s attractive. When I first ordered the Oura Ring, I picked a gold finish from several color options (brushed silver, stealth, silver, brushed titanium, rose gold, and black are also available). The company sends a sizing kit first, and once you confirm your fit, it ships the ring. I wear mine on my middle finger, and it’s so comfortable and stylish that I rarely take it off. It blends seamlessly with my other jewelry, and people often compliment it—usually without realizing its hidden powers.
It’s water-resistant. I shower and swim in my smart ring. Because I can wear it in all scenarios, I don’t have to worry as much about taking it off and leaving it by a sink.
Its health tracking. Reliably, every month when I start to feel moody or crampy, the Oura app asks, “Have you started your period yet?” Based on fluctuations in my temperature, it can predict when my period is approaching. I find it super helpful for planning ahead—or just validating that my irritability is hormonal. My Oura-wearing friends who are trying to get pregnant find the feature invaluable as well.
It helps me prioritize rest. One of the most valuable aspects of the Oura Ring is how much more aware it’s made me of my body’s recovery needs. Its Readiness Score pulls from my sleep quality, heart rate variability, temperature trends, and recent activity to assess how well I’ve recovered—and it doesn’t just show me a number. The app will actively nudge me to take it easy, that I might be getting sick, or that I’m in good shape for high activity. I know it sounds obvious (shouldn’t I just know when I’m run down?), but I often push through low energy and ignore the signs. The Oura catches those subtle shifts and reminds me to slow down before I burn out.
Cons
The measurements aren’t perfect. Like most fitness trackers, the Oura isn’t always spot-on. Its activity and sleep tracking can be a little off. There are days when I’ve barely left the house, yet it claims I’ve walked 7,000 steps. My sleep score often feels lower than it should, mostly because of how it measures “latency”—the time it takes me to fall asleep after getting in bed. I like to read before sleeping, but the ring likely interprets that as me struggling to fall asleep, which drags my score down. Activity tracking also feels less sophisticated than what I’ve seen with devices like the Apple Watch. For instance, it often misses more nuanced workouts like an intense yoga class. While I can manually log those sessions (including duration, time, and intensity), it rarely seems to make much of a dent in my overall activity score.
If you lose it, good luck finding it. Because the Oura Ring doesn’t have audio or haptics (which I mostly appreciate), it’s practically impossible to locate if you put it down without thinking. There’s no “Find My” feature or built-in alert system. I once left mine on my desk, and my cat batted it under the couch. It took me three weeks to find it—and by then, I’d already bought a new one. That tells you two things: It’s way too easy to misplace, but I also liked it enough to replace it.
Battery life isn’t unlimited. While the Gen 4 promises up to eight days per charge, my Oura ring 3 now needs charging every three to four days after a couple of years’ use. Charging takes about an hour, which isn’t a big deal but is worth keeping in mind.
It’s not cheap. The newest Gen 4 ring starts at $349, plus a $5.99/month membership for full app access (or $69.99/year). While that may feel pricey for a screenless tracker, it’s fairly comparable to other high-end fitness devices—and with this rare Oura Prime Day sale, it’s more affordable. My Gen 3 ring is even cheaper, though its sensor capabilities and battery life aren’t quite as advanced or long-lasting as the Gen 4’s.
Oura Ring Gen3 Horizon
Amazon
Oura
Final thoughts
Despite some slight inconsistencies in measurements, I find my Oura Ring fairly accurate overall—and the positives far outweigh any concerns. I love how sleek and seamless it is, unlike a bulky watch, so I barely notice I’m wearing it. Its accuracy with metrics like heart rate variability and body temperature, combined with how the app encourages me to pay closer attention to my rest and recovery, makes the ring truly worth it. After three years with the Gen 3, this Oura Ring Prime Day deal feels like the perfect time to upgrade to the Gen 4. It’s currently 15% off for the four-day event—a discount I don’t think I’ve ever seen. Why wait to put a ring on it?
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