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The Oura Ring 4 is a sleek, black smart ring designed for advanced health tracking including sleep quality, heart rate, and body temperature. Featuring up to 8 days of battery life and water resistance, it offers seamless Bluetooth syncing with a proprietary app that delivers deep personalized insights and recovery guidance. Its unique sizing ensures a perfect fit, making it a discreet yet powerful wellness companion for professionals seeking data-driven self-care.

| ASIN | B0D9WVR866 |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Batteries Included | Yes |
| Batteries Required | Yes |
| Battery cell composition | Lithium Polymer |
| Brand | OURA |
| Compatible Devices | Smartphone |
| Connector Type | Bluetooth, Wi-Fi, Proprietary Wireless Protocol |
| Customer Reviews | 4.0 4.0 out of 5 stars (5,244) |
| Date First Available | 3 October 2024 |
| Device interface - primary | Unknown |
| Display Type | No Display |
| Includes Rechargeable Battery | Yes |
| Item Dimensions LxWxH | 25 x 25 x 7 Millimeters |
| Item Weight | 181 g |
| Item model number | JZ90-54144-08 |
| Manufacturer | Oura |
| Model | JZ90-54144-08 |
| Model Name | Oura Ring 4 |
| Mounting Hardware | Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide |
| Number of items | 1 |
| Operating System | Proprietary Operating System |
| Product Dimensions | 2.5 x 2.5 x 0.7 cm; 181 g |
| Special Features | Advanced Health Tracking, Long Battery Life, Water Resistant, App Integration |
| Wireless Type | Bluetooth |
E**A
S**E
I discovered the Oura Ring 4 through the Clue period tracking app, and it’s been a total game-changer. I live with Chronic Fatigue Syndrome, Fibromyalgia, and AuDHD, and I was looking for something that could help me track sleep, stress, body temperature, and recovery. Oura delivers on all fronts—and then some. What I love most is the accuracy and depth of insight. It doesn’t just give you only the minimal data, like Deep, Light and REM sleep, but also things like how long it takes you to get to sleep (latency) and how restless you are —it then translates this into genuinely helpful feedback, like sleep and recovery scores, body temperature trends, and guided breathing for stress. The daily readiness score helps me pace myself, which is essential when managing fatigue and sensory overwhelm. The breathing and mindfulness sessions have been a great tool during flare-ups or overstimulation. A few things to note: There is a monthly app subscription, but it’s reasonably priced for what you get. I also got a month free when I signed up. The app is intuitive and easy to navigate, though some people might need a bit of time to explore all its features—there are a lot, and they’re all useful. It takes about 90 days for Oura to fully calibrate and understand your individual baseline, so the insights get better over time. Buying the sizing kit first is a MUST—you’ll want a good fit for accuracy and comfort. Tagging activities and meals is super simple (if you remember to do it). The Rest Mode is a thoughtful feature for days when you’re sick, in pain, or recovering, though I do wish stress tracking stayed active during this mode. Battery life is solid, syncing is quick, and the ring itself is lightweight and comfortable—even with sensory sensitivities. It also integrates beautifully with Clue for cycle tracking, which adds another layer of helpful data for me. If you're managing chronic illness, neurodivergence, or just want a deeper, more holistic view of your health, I can’t recommend the Oura Ring 4 enough. It’s not just about fitness—it’s about understanding your body, honoring your limits, and supporting your wellbeing.
D**A
Delivery took longer than expected, but i am happy with the ring. It does exactly what they advertise. Its a nice to have.
U**A
Najlepszy tracker samopoczucia i dobrostanu
C**L
I’ve only used it for a week so I haven’t gotten the full insights it can offer, but the Oura ring 4 has been great so far. I bought it primarily to track my sleep, and it’s fascinating to track the quality of my sleep each night.
Trustpilot
2 months ago
4 days ago