UniJethro Smart Ring for Women & Men, Health Tracker Ring with Heart Rate, Blood Oxygen, Blood Pressure, IP68 Waterproof Fitness Ring
Quick take
This UniJethro smart ring is a no-display fitness and health tracker that measures heart rate, blood oxygen, blood pressure, and sleep, while also tracking steps, calories, and distance. It is designed for all-day wear with IP68 water resistance and multi-day battery life, but buyer experience depends heavily on app stability and getting the right ring size.
Pros and cons
Pros
- Tracks multiple health metrics, including heart rate, blood oxygen, blood pressure, plus sleep and sleep patterns.
- Comfort-focused, lightweight ring design with a resin and stainless steel case for everyday wear.
- Water resistance rated IP68 (up to 5 meters), helpful for sweat and hand washing.
- Battery life is described as about 3 to 5 days regular use, and up to 7 to 10 days standby.
Cons
- App performance may be uneven, with at least some reports of freezing when other apps are running.
- Correct sizing matters, and some buyers report needing a different size than expected.
- Comfort and fit can vary by finger, so you may need to test which finger placement works best for you.
What buyers think
Buyer feedback is generally positive on comfort, everyday usability, and the convenience of setup and Bluetooth syncing. Several buyers highlight that the ring tracks daily activity such as steps and workouts, and they describe it as holding up during real-life use like hand washing. Battery life also comes up favorably, with multiple comments pointing to long use between charges.
On the downside, buyer-review evidence is limited but includes a recurring theme around app reliability, including reports of freezing or functionality concerns. Sizing is another practical theme, with at least some buyers saying the ring ran small for them and that getting the right size is crucial for comfort and sensor positioning.
What this smart ring tracks (and what you can use it for)
This is a health and activity ring, not a fitness watch. It measures core metrics like heart rate, blood oxygen, and blood pressure, and it focuses on sleep tracking and patterns. For daytime activity, it also tracks steps, calories burned, and distance.
It is positioned for a range of activities, including cycling and exercise-focused routines, and it is designed for continuous wear so you can build daily trends rather than just view occasional workout stats.
Battery life, charging, and everyday wear
Battery performance is described as approximately 3 to 5 days during regular use, with up to 7 to 10 days in standby mode. In practice, buyers repeatedly call out battery life as a strong point for a ring in this category.
The ring charges using a dedicated charging cable and includes a silicone ring protector. Some buyers also mention a portable charging and storage case, which can make it easier to top up without needing a desk charger setup.
For durability, the ring uses a resin plus stainless steel case, and it is designed to be worn during normal routines. If you plan to keep it on while doing everyday tasks, the reviews suggest it can handle typical wear and hand washing.
Water resistance: what IP68 means for daily life
With an IP68 water resistance rating (listed as water resistance depth up to 5 meters), this ring is built for moisture-related situations like sweat and hand washing. It is a practical feature for people who want a ring that does not require as much day-to-day caution as lower-rated trackers.
Still, if your routine includes frequent submersion or extended water exposure, you should consider your exact use case and treat IP ratings as guidance for intended daily conditions rather than a substitute for dedicated dive-grade equipment.
Comfort and sizing, the part that can make or break the experience
Because this is a sensor-based ring, fit matters. The ring is offered in multiple sizes, and buyer feedback indicates that some people may need to size up if they are between sizes or if the ring feels tighter than expected.
It also helps to think about where you will wear it. Some buyers discuss testing which finger placement works best, since sensor contact and comfort can vary from person to person. If you want the most accurate readings and the least irritation, taking time to choose the right size is worth it.
App and connectivity: what to expect
This ring uses Bluetooth connectivity and is supported by the SmartHealth app. It includes features like sleep tracking and health data sharing, plus a remote photo control function (useful if you like controlling a camera from your phone).
App reliability seems to be the biggest variable in buyer experience. Review evidence is limited, but there is at least one mention of the app freezing when many apps are open. If you prefer background multitasking on your phone, it may be wise to keep that in mind and be prepared to close other apps if performance becomes inconsistent.
Pros and cons summary for decision-makers
- Best for: shoppers who want a lightweight smart ring with multi-metric health tracking, sleep insights, and everyday activity metrics, especially if they value IP68 water resistance and long-ish battery intervals.
- Who should buy: people comparing smart rings on budget who are comfortable verifying sizing and are willing to give the companion app time to stabilize on their phone.
- Who should avoid: buyers who need consistently smooth app performance above all else, or those who are very sensitive to fit and prefer minimal trial-and-error with wear position.
Verdict: is it worth it?
If you want a health and sleep tracking ring for daily wear, with IP68 water resistance and a battery that does not require constant charging, the UniJethro smart ring is a compelling option to consider. The main reasons to hesitate are app stability variability and the importance of getting the right size and placement for comfort and reliable sensor contact.
If those tradeoffs are acceptable for you, this ring can be a practical way to monitor heart rate, blood oxygen, blood pressure signals, and sleep trends without needing a larger wearable form factor.
FAQs
Does this smart ring show health stats like blood oxygen and blood pressure?
Yes. It is designed to monitor heart rate, blood oxygen, blood pressure, and sleep (including sleep patterns) through its built-in optical sensors, with the results viewed in the companion app.
How long does the battery last?
Battery life is described as about 3 to 5 days with regular use, and up to 7 to 10 days in standby mode.
Is it waterproof?
It is rated IP68, listed with water resistance depth up to 5 meters, which is useful for sweat and hand washing. For heavy or long water submersion routines, consider your specific conditions.
Do I need an app?
Yes. The ring works with the SmartHealth app for setup and viewing health and activity data, and it does not require an app subscription fee as described.
Is sizing important?
Yes. Fit affects comfort and sensor contact, and some buyers report needing a different size than expected. If you are between sizes or unsure, take care with sizing and test which finger placement feels best.
Does the app work smoothly on iPhone and Android?
It supports Android and iOS. However, buyer feedback includes limited mentions of app freezing under certain multitasking conditions (for example, when many apps are open), so you may need to manage phone background apps if issues occur.
Specifications
| Product Title | Smart Ring for Women & Men, Health Tracker Ring with Heart Rate, Blood Oxygen,Blood Pressure, IP68 Waterproof Fitness Ring, Sleep Tracker for iPhone and Android, No APP Fee (Silver, 7#) |
|---|---|
| Category | Electronics > Wearable Technology > Rings |
| Brand | UniJethro |
| Manufacturer | Unijethro |
| Model Name | R11M |
| Model Number | R11M |
| Color | Silver |
| Item Weight | 3.2 ounces |
| Operating System | Android, IOS |
| Additional Features | Remote Photography, Family Care, Blood Pressure Monitor, Fitness and Activity Tracker, Blood Oxygen Monitor, Heart Rate Monitor, Sleep TrackerFitness and Activity Tracker, Sleep Tracker |
| GPS Geotagging Functionality | GPS Via Smartphone |
| Band Material Type | Stainless Steel |
| Water Resistance Level | Waterproof |
| Sport Type | Cycling, Diving, Fitness, Hiking, Multi-Sports |
| Supported Application | SmartHealth |
| Water Resistance Depth | 5 Meters |
| Controller Type | APP |
| Metrics Measured | Heart rate, sleep, sleep patterns, blood oxygen, blood pressure, wave-to-snap, family care |
| Closure Type | No Closure |
| Shape | Round |
| Style Name | Modern |
| Connectivity Technology | Bluetooth |
| Wireless Compability | Bluetooth |
| Communication Feature | Bluetooth |
| Display Type | No Display |
| Memory Storage Capacity | 32 MB |
| RAM Memory Installed | 64 MB |
Available variants
Color
- Rose Gold
- Silver
- Green
- Blue
- Lavender Pink
- Gold
- Black
- Orange
Size
- 13#
- 14#
- 6#
- 7#
- 8#
- 12#
- 10#
- 9#
- 11#
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