1 / 7OURA Oura Ring 5 Black, Size 9
The OURA Oura Ring 5 is a black, size 9 smart ring listed with sleep, activity and health tracking features. Its unusual sizing makes fit the first thing to sort out: the listing says to use the Oura Ring 5 Sizing Kit before purchasing.
At a glance
- The listing describes sleep, activity, heart-rate, blood-oxygen and skin-temperature tracking.
- Bluetooth connectivity is listed, with Android and iOS devices named as compatible.
- Sizing is stated to be unique to this ring. The listing recommends using the Oura Ring 5 Sizing Kit before buying.
- The listing says the first month of membership is included for new Oura members.
Pros and cons
Pros
- A ring format without a screen may suit buyers who prefer wearable tracking without a wrist display.
- The listing specifies a broad set of tracking categories, including sleep, activity, heart rate and blood oxygen.
- Bluetooth and compatibility with Android and iOS phones are listed.
Cons
- There is no built-in display, so the ring itself does not show its tracking information.
- The claimed 8-day battery life and 80-minute charge time are listing specifications, not independently established performance.
Technical specifications
24 specifications| Brand | OURA |
|---|---|
| Model | Oura Ring 5 Black - Size 9 |
| Listed features | Activity Tracker, Blood Oxygen Monitor, Heart Rate Monitor, Skin Temperature, Sleep Tracking |
|---|---|
| Metrics measured | Blood Oxygen (SpO2), Body Temperature, Heart Rate, Sleep Duration, Step Count |
| Screen technology listed | No Display |
| Wireless connection listed | Bluetooth |
|---|
| Battery life listed | 8 days |
|---|---|
| Battery capacity | 9 Milliamp Hours |
| Battery charge time | 80 Minutes |
| Battery cell type | Lithium Polymer |
| Form factor | Round |
|---|---|
| Dimensions listed | 6 x 2 millimetres |
| Weight listed | 0.06 Kilograms |
| Band length listed | 58.7 Millimeters |
| Case material | Titanium |
|---|---|
| Water resistance listed | Water Resistant |
| Water resistance depth | 100 Meters |
| Waterproof rating | IP68 |
| Storage listed | 32 MB |
|---|---|
| Operating system | Proprietary OURA Firmware |
| Colour | Black |
|---|---|
| Style | Minimalist |
| Compatible devices | Smartphone |
| Compatible phone models | Android Devices, iOS Devices |
What to know before buying
- The first membership month is stated to be included for new Oura members. The listing does not provide further membership terms here.
Listing details to confirm
Fit is a key purchase condition. The listing says Ring 5 sizing differs from standard jewellery rings and recommends using the Oura Ring 5 Sizing Kit before purchase. The listed size 9 should not be assumed to match a standard ring size. The listing gives conflicting or inconsistent details: GPS is listed both as unavailable and as a supported satellite navigation system, while 6 x 2 millimetres is listed as the item size alongside a separate band length. Treat these details as unconfirmed rather than settled specifications.
Who is it for?
A good fit for
- Buyers wanting a screen-free ring to track sleep and daily activity alongside other listed health metrics.
- People who want a Bluetooth wearable listed as compatible with Android and iOS phones.
- Shoppers who can confirm the ring's specific sizing before ordering.
Less suited to
- Buyers who need a display on the wearable itself.
- Anyone who expects a standard jewellery size to guarantee this ring's fit.
- Buyers who require an unambiguous GPS specification from the listing.
Customer reviews on Amazon
- 5 stars
80% 80% - 4 stars
7% 7% - 3 stars
5% 5% - 2 stars
2% 2% - 1 star
6% 6%
Customer feedback highlights sleep tracking and the amount of information the ring can gather, with some customers also appreciating its battery life. Experiences are not uniformly positive: functionality is mixed, some customers report heart-rate sensor and connectivity issues, and opinions differ on whether the cost is worthwhile. For buyers considering the listed sleep and activity tracking, those reports make app connection and the features they rely on important practical considerations. The ratings distribution is mostly five-star but includes lower ratings, so it does not establish that every user's experience will match the positive reports.
Positive themes
- Customers praise sleep tracking and the breadth of information gathered.
- Some customers appreciate battery life, with a report of about a week between charges.
Negative themes
- Some customers report connectivity concerns.
- Some customers report issues with the heart-rate sensor.
Mixed feedback
- Feedback on functionality is mixed, with some finding it helpful and others raising concerns.
- Opinions differ on whether the ring is worth its cost.
Frequently asked questions
Does the Oura Ring 5 have a screen?
No. The listing specifies No Display, so tracking information is not shown on the ring itself.
Should I rely on the listed size 9?
The listing says Oura Ring 5 sizing differs from standard jewellery sizing and recommends using its sizing kit before purchase. Do not assume a standard size 9 will fit.
How long does the battery last?
The listing gives a battery life of 8 days and a charge time of 80 Minutes. These are listing claims, not independently verified results.
Does the listing confirm GPS support?
No. It lists both No GPS and GPS as a supported satellite navigation system, so GPS capability is contradictory and should be treated as unconfirmed.
Is a membership month included?
The listing says the first month is included for new Oura members. It does not specify further membership terms.
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Offer details
- The listing says the first month of membership is included for new Oura members.