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The Oura Ring 4 is a cutting-edge smart ring crafted from durable titanium, designed for continuous 24/7 wear. It tracks over 30 health and wellness metrics including sleep, heart rate, and activity with advanced Smart Sensing technology. Featuring up to 8 days of battery life and a unique sizing kit for a perfect fit, it seamlessly integrates with the Oura App membership for personalized insights, making it the ultimate discreet fitness and health tracker for professionals on the go.








| Age Range | Adult |
| Color | Gold |
| Size | 8 |
| Style | Modern |
| Compatible with | Smartphone, Tablet |
| Display Type | No Display |
| Shape | Ring |
| Meter | Optical Heart Rate Sensor, Accelerometer |
| Number of Items | 1 |
| Features | Heart Rate Monitor, Activity Tracker |
| Included Components | Information Booklet, Oura Ring 4, Oura Ring 4 Charger, Quick Start Guide, USB-C Cable |
| Batteries Included? | Yes |
| Brand | OURA |
| Manufacturer | Oura |
| Item model number | JZ90-54216-08 |
| Product Dimensions | 2.2 x 2.2 x 0.7 cm; 190 g |
| ASIN | B0D9WVKXLK |
R**U
dying battery render the ring useless, free replacement seamlessly provided
Product works as expected and is hepful. After 7 months of usage battery is dying, resisiting less than one day after full charged. I contacted the seller, and free replacement arrived in couple of days, no need to return the mafunctioning one. As such, a one star reviewe turned into a 5 stars.
T**E
Pricey and good quality
No wonder it is priced very high but it delivers the quality justifying the price tag
K**S
Useless
Useless : battery fails after 1 month : customer service does not exist : do not buy
K**O
Life changing if you’re willing to put the work in
I’ve had it for a month now and I can say it really keeps me on track not necessarily health and fitness but more habits and trends. I think everyone can benefit from it. It came neatly packaged and sealed 100% new and after wearing every day I definitely have a lot of small scratches (and I take it off for showering doing dishes etc) but not visible to the normal eye
F**I
Outstanding technology
The ring works very well and it is helping to monitor my health, sleep and activity. Strongly suggested. I got my ring the same day I ordered, great service from Amazon
I**Y
Good functional ring. Maybe the best on the market
Color has changed in few months. A lot of scratches. But the ring in overall is very good and functional.
L**G
the best investment I've ever made
I love it !! The Oura Ring 4 is a powerful tool for those looking to optimize their health mindfully and without the digital noise of other devices. It’s ideal for anyone who values sleep quality, physical recovery, and overall well-being. I highly recommend it if you’re committed to improving your lifestyle in a smart and sustainable way.
Y**A
Tarnished very quickly, choose carefully
The Oura Ring colour has tarnished within 4 weeks of wearing, it now looks copper (not rose gold), and doesn't match my jewellery. I'd ideally like to exchange but the return window is really short on Amazon and there is no option to swap now even after a short period, wouldn't recommend as the colours tarnish very quickly!
L**S
事前にサイズキットを購入して1,2日候補となる指でつけて生活することはマストです。 Ouraリングそのものはデータが好きな人間にとって最高のツールです。 結構厚みもありますが、日常生活で邪魔に感じることはほとんどなく日常の一部になっています。
U**A
Najlepszy tracker samopoczucia i dobrostanu
T**A
Increíble gran compra …
I**A
Je ne l'ai pas depuis longtemps, mais pour l'instant j'en suis très satisfaite. Grâce au baguier, j'ai pu définir la bonne taille de bague. Je ne dirais pas qu'elle est rose, je dirais plus que ça fait métal doré mais joli. Et puis par rapport aux autres bagues connectées qui sont souvent noires, celle-ci est de fait, plus discrète. Je préfère. Quant aux fonctionnalités, avec l'application je suis mon sommeil, ma FC, la variabilité de ma FC, ma FR... J'ai découvert avec joie que mon âge cardiovasculaire est de 6 ans plus jeune que mon âge physiologique. Déjà que ma balance impédencemètre me dit que mon âge métabolique est de plus de 10 ans de moins que mon âge physiologique... Ces appareils sont très sympas!
P**T
Excellente bague connectée et même avec les 5,99€ par mois d’abonnement cela en vaut la peine. Je la recommande
Trustpilot
5 days ago
1 month ago