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💍 Elevate your wellness game—wear the future on your finger.
The Oura Ring 4 is a cutting-edge smart ring designed for professionals who demand precision and style. Featuring advanced Smart Sensing technology, it tracks over 30 biometric signals including sleep, heart rate, and stress with clinical accuracy. Its all-titanium, water-resistant build ensures comfort and durability for 24/7 wear, while an impressive 8-day battery life keeps you unplugged longer. The included sizing kit guarantees a perfect fit, and the Oura membership unlocks deep health insights, making it the ultimate wearable for holistic wellness.
| ASIN | B0D9WW8V53 |
| Additional Features | Heart Rate Monitor, Sleep Monitor |
| Age Range Description | Adult |
| Band Color | Gold |
| Band Material Type | Gold |
| Battery Average Life | 8 days |
| Battery Capacity | 8 |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Best Sellers Rank | #12,376 in Electronics ( See Top 100 in Electronics ) #46 in Wearable Tech Rings |
| Brand | OURA |
| Built-In Media | Information Booklet, Oura Ring 4, Oura Ring 4 Charger, Quick Start Guide, USB-C Cable |
| Case Material Type | Titanium |
| Closure Type | Slip On |
| Color | Gold |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Compatible with iOS and Android devices |
| Connectivity Technology | Bluetooth |
| Country of Origin | Estonia |
| Customer Reviews | 4.1 4.1 out of 5 stars (7,024) |
| Display Type | No Display |
| GPS Geotagging Functionality | No GPS |
| Global Trade Identification Number | 06430060153240 |
| Human Interface Input | Unknown |
| Item Dimensions | 25 x 25 x 7 millimeters |
| Item Dimensions D x W x H | 25D x 25W x 7H millimeters |
| Manufacturer | Oura |
| Metrics Measured | Heart Rate Monitor, Sleep Monitor |
| Model Name | Oura Ring 4 - Gold - Size 4 |
| Model Number | JZ90-54216-04 |
| Operating System | Proprietary OS |
| Shape | Round |
| Style Name | Minimalist |
| Supported Application | ['Sleep Monitor', 'Fitness Tracker', 'Heart Rate Monitor', 'Stress Monitor', 'Women's Health Tracker', 'Activity Tracker', 'Apple Health', 'Google Health Connect', 'Natural Cycles', 'Flo', 'Strava'] |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex Adults |
| Unit Count | 1.0 Count |
| Warranty Description | 2 year manufacturer warranty |
| Warranty Type | Standard |
| Water Resistance Depth | 1 Meters |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IPX7 |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
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
A**Y
Battery issue
After 5 months of usage battery capacity decreased to ~ 1.5 day. Sometimes during the night ring hangs and does not provide sleep metrics at all. This issue also seems to be related to battery malfunction. Latest firmware and soft resets do not help.
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
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.
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.
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
M**A
Very Good
Very Good
M**.
Ich suchte eine Alternative zur Sportuhr / Smartwatch und wurde fündig. Der Ring macht nicht nur optisch etwas her, sondern liefert einem auch Daten über die eigene Gesundheit. Er ist ein guter Allrounder und macht einiges sichtbar, was man im Alltag doch gerne übergeht. Mit Hilfe des Ringes achte ich nun mehr auf Bewegung und Ruhezeiten. Die Auswertungen sind zudem hochinteressant. Ich kann den Ring jedem empfehlen der auf der Suche nach einem Gerät ist, welches den Fokus auf die Beobachtung der Gesundheit legt. Sollte der Schwerpunkt eher auf dem Sport liegen, würde ich zu einer Smartwatch tendieren.
E**A
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.
☆**☆
睡眠の質と日々の健康状態を把握したくて購入。 現在使い始めて5ヶ月目。 普段はPixel Watch 4をつけているけど、両方使っても全く邪魔にならない。 つけている感覚があまりないから、寝る時も気にならないのがいいところ。 事前にサイジングキットで指の太さを測ってから買ったので、フィット感はばっちり。 キットの購入代金分がしっかり割引になったのも助かった。 最初のうちはただの記録だけど、30日くらい使い続けると自分のサイクルが見えてくる。 データが蓄積されて、日々の体感とストレス測定のグラフがぴったり合うようになる。 5ヶ月間使ってみて、とくによかったのはこんなところ。 ・時計と併用しても指や手首が快適 ・30日目あたりから自分の疲れのピークがわかる ・ストレス状態の測定精度がかなり高い ・体調不良の兆候を事前に教えてくれる 一番驚いたのは体調不良の予測。 実際に体調を崩し始めたタイミングで、アプリがしっかり不調を検知していた。 ついつい無理をして、自分から休みをとれない性格の人におすすめ。 客観的なデータで「そろそろ休んだほうがいい」とストップをかけてもらえる。 今ではすっかり手放せない、健康管理のお守りになっている。
U**A
Najlepszy tracker samopoczucia i dobrostanu
Trustpilot
4 days ago
5 days ago