Try our cookies Alza.cz a. s., Company identification number 27082440, use cookies and other data to ensure the proper functioning of the website and, with your consent, also, among other things, to personalize advertising and the content of our websites. By clicking on the “I understand“ button, you agree to the use of cookies and the transfer of data regarding the behavior on the website for displaying targeted advertising on social networks and advertising networks on other websites.
I understand Detailed settings Reject everything
Alzak icon
Catalogue
Oura Ring 4 Black size 11 - Smart Ring

Reviews Oura Ring 4 Black size 11

Interested in reviews of Oura Ring 4 Black size 11? It got 4.4 out of 5 stars from our customers. Find specific customer reviews of Oura Ring 4 Black size 11 below. We will appreciate if you also share your experiences with Oura Ring 4 Black size 11 after purchasing.
362.90 €
In stock > 5 pcs
Add to Cart More Information

User Reviews

Ondřej, Velká Bítešflag
Rated 02/01/2026, variant Oura Ring 4 Black size 11
Verified purchase
measures sleep and recovery several levels better than AW
looks nice, I recommend it
after more than a week, no scratch yet and I've already tapped a few times, for comparison on 14k gold it's been visible for a long time and some people like gold more than ours, so.
I like the app
I despaired for a while that I hadn't tried Ultrahuman, but this is the original and after reading the reviews on the quality of UH I have no regrets: D
as time passes, the app will show you more and more
I'm afraid I'll scratch it, but for the price of the ceramic version I got this + 3 years subscription
for some, maybe the subscription itself, but it is what it is
it's a pity that the annual subscription is not somehow fundamentally more profitable than the monthly one, but rumor has it that the subscription will be cancelled in a few years AT LEAST (with 5th gen)
0 ×Report
Automatic translation
David, Praha 6flag
Rated 16/11/2025, variant Oura Ring 4 Black size 11
Verified purchase
In 5 months of use, the battery lasts 3 days. Not 5-8! It drops 30% during the first night after an evening charge! Can this be claimed? Otherwise, I like the ring and would recommend it to all fans of biorhythm tracking.
Measured and recorded reliably everything promised, satisfaction
Inconsistent battery life
0 ×Report
Automatic translation
Veronika, Praha - Kunraticeflag
Rated 17/06/2025, variant Oura Ring 4 Black size 11
Verified purchase
I had to get a black Oura Ring for my husband after I've had mine for a while because he really wanted one too: ) lightweight, comfortable, fast charging, long lasting charge
detailed statistics on everything around the heart, sleep, menstruation, but especially the general state of the body and mind, special reports in pregnancy
watches temperature fluctuations in the tenths (menstrual cycle, prediction of illness) - this is how he warned me of the coming of a virus when I still thought it was nothing - but when you see readiness 50 and everything in increasingly worse values, it forces you to rest and sleep more, which I probably would not have done otherwise, and then you get out of it faster
we measure at home, as parents, who has slept more and who has worse values or stress, so we know who to load more children and responsibilities on that day so that the other can rest - then there is more peace at home
I'm looking forward to AI Advisor, it seems like a whole new level - how to translate that pile of numbers into human language and talk about it
if I have an optimal score in the morning, then I can really manage to stay up later in the evening and not fall straight to bed with the kids
it generally leads me to be more mindful of how I feel
can't track location if you lose it
0 ×Report
Automatic translation
Martin, Brno 14flag
Rated 05/05/2026, variant Oura Ring 4 Stealth size 10
Verified purchase
Bought at a bargain price after Christmas. 2 claims within 4 months. Despite the fact that I demanded a replacement for a faultless product, Alza resolved the complaint with a refund and due to the prepaid service from Oura I have to buy the ring for a significantly higher price.
great features
I've had to claim twice in 4 months. Instead of the requested replacement, Alza forces me into a new purchase at a higher price.
0 ×Report
Automatic translation
Customer, prahaflag
Rated 28/04/2026, variant Oura Ring 4 Silver size 13
Verified purchase
I have mixed feelings about this product. The ring itself is well-designed, comfortable, and the health tracking features are generally accurate. Battery life is also very good. However, I experienced issues with Bluetooth stability in real-life usage. When using multiple connected devices (such as headphones and a watch), the connection can become unreliable. While it usually reconnects, this affects the overall experience and confidence in the device. In my case, I even had to replace the product once due to more serious issues, and although the replacement improved things, the connection is still not as stable as expected for a premium device. Overall, it’s a good concept, but at this price point I would expect more reliable performance without needing to adjust how I use my other devices.
Good design and build quality
Comfortable to wear daily
Accurate basic health tracking
Long battery life
Unstable Bluetooth connection in real-life usage
Connectivity issues when multiple devices are connected
Not always reliable for syncing data
Expensive for the level of stability provided
0 ×Report
Veronika, Praha 9 - Kbelyflag
Rated 24/04/2026, variant Oura Ring 4 Rose Gold size 8
Verified purchase
He was able to recognize an intolerance to a drug in a pill I was newly prescribed. If one is really guided by what one likes, one is more relaxed, fresher.
Great monitoring
Helps to get to know the body
You can pull up data for the doctor
Price
It gets scratched even by ordinary wear.
0 ×Report
Automatic translation
Anonymous customerflag
Rated 13/04/2026, variant Oura Ring 4 Silver size 8
Verified purchase
I switched from Oura 3 and I am very happy. Apart from the fact that the price is quite high, the ring has no drawbacks. I find the material more durable and the measurement more accurate. Beautiful design, luxurious packaging, seamless introduction to the app. Recognises activity well.
Design
measurement accuracy
material quality
package
number of functionalities in the application
price
0 ×Report
Automatic translation
Ondřej, Prahaflag
Rated 11/04/2026, variant Oura Ring 4 Silver size 7
Verified purchase
Very accurate measurement compared to Garmin Fenix 7 Pro
Not to feel on the hand
Many features upon subscription payment
Higher price
Obligation to pay a subscription
0 ×Report
Automatic translation
Customerflag
Rated 17/03/2026, variant Oura Ring 4 Stealth size 10
Verified purchase - review from a price comparison website
I have little practical experience to evaluate the product
0 ×Report
Automatic translation
Customer, Mohelniceflag
Rated 28/02/2026, variant Oura Ring 4 Silver size 12
Verified purchase
cool thing
0 ×Report
Automatic translation
1 - 10 from 32
P-DC1-WEB10

Displayschutz, Inbetriebnahme uvm. Vergiss nicht unser breites Angebot an zusätzlichen Dienstleistungen. More info »