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 (Black, 11#)
Quick take
This smart ring is designed for people who want a lightweight, no-screen wearable that tracks heart rate, blood oxygen, sleep, and activity, with waterproof protection (IP68) for daily life. Battery life is rated around 3-5 days in regular use, up to 7-10 days standby, and it uses an app with no stated subscription fee. The main caveat is that user experience can depend on app performance, plus sizing needs to be right for comfortable wear and sensor accuracy.
Pros and cons
Pros
- Tracks multiple health signals: heart rate, blood oxygen, blood pressure, and sleep analysis.
- Good everyday durability for active wear, IP68 water resistance (up to about 1 meter depth).
- Comfort-first design with resin and stainless steel case, plus unisex sizing options.
- Battery life rated about 3-5 days regular use, up to 7-10 days standby, with a charging cable and charging case.
Cons
- Limited display and on-ring feedback, so you rely on the companion app for details.
- Some buyers report the app can freeze or have functional issues, which affects the day-to-day experience.
- Getting the size and fit right matters, since comfort and sensor placement are key for reliable tracking.
What buyers think
Buyer-review evidence is mixed but generally points to a comfortable, easy-to-live-with ring that performs well for everyday activity and health monitoring when paired with a working app connection. Several reviewers highlight comfort (lightweight, secure fit) and practical tracking for steps, workouts, and sleep-related insights. Battery performance is also frequently described as strong for real-world wear, and the included charging case is seen as convenient and portable. The main recurring theme is that app behavior can impact usability, with at least some buyers mentioning freezing or broader functionality concerns.
What this smart ring tracks, and what it is best for
This is a health and fitness ring built around continuous sensing. The core metrics include heart rate monitoring, blood oxygen (SpO2) readings, blood pressure monitoring, and sleep tracking (including sleep patterns). For activity, it uses an accelerometer (listed as SC7A20H) to estimate steps, calories burned, and distance. It also supports activity-focused use cases such as running, cycling, hiking, and yoga, plus general fitness tracking.
If your goal is to wear something comfortable 24/7 to get day-to-day trends, this category of ring is typically a better match than a chunky fitness device. If you want a ring that shows stats directly on-screen, this one does not include a display, so you will be checking details in the app.
Battery life, charging, and daily usability
The battery is rated at about 5 days average life, with roughly 3-5 days of regular use and up to 7-10 days in standby mode. It has a charging cable plus a charging case, and reviewers have noted the case is portable and convenient to keep with you. There is also a silicone ring protector included, which can help during storage and day-to-day handling.
Because it has no display, day-to-day usability is mostly about how smoothly the app syncs and how quickly you can top up between busy weeks. If app connectivity is stable for you, the charging routine should be straightforward.
Water resistance and durability for real life
With an IP68 water resistance rating (listed as water immersion-related, up to about 1 meter), this ring is positioned for sweaty workouts, hand washing, and general water exposure. Buyers mention it handling everyday conditions like rainy weather without issue. Still, it is wise to treat IP68 as “daily-life protection,” not as an invitation for long-term deep-water use.
Sizing, comfort, and sensor placement
This ring is designed to be worn all day, and the resin plus stainless steel case is meant to feel comfortable on the finger. Multiple reviewers specifically call out comfort and a lightweight feel. If you have to choose between “a little loose” and “a little tight,” comfort is important, but so is consistent sensor contact on the skin for tracking accuracy. Plan on trying the right size and test a couple of fingers if your use case allows it.
App and setup experience
The ring is marketed for use with iPhone and Android. It supports app features that go beyond health metrics, including health data sharing and remote photo control (the ability to trigger a camera remotely). Review evidence suggests setup can be simple and connectivity can be smooth for some buyers.
However, reliability is the biggest uncertainty. Some buyers mention that the app can freeze when too many apps are open, and others describe concerns about functionality and responsiveness. If you are sensitive to app glitches, you may want to prioritize minimizing background apps on your phone and confirm compatibility before you depend on the ring for important routines.
Price and availability
Pricing for this ring is positioned as a budget option, with a list price shown higher than the current price. Availability appears in stock for the product listing in the US. If you are comparing value, pay attention not only to the features but to what matters for you most, app reliability and sensor fit are usually the two deciding factors for ring-style trackers.
Pros and cons recap
- Buy this if: you want a lightweight smart ring with sleep tracking and core vitals (heart rate and blood oxygen), plus everyday activity metrics.
- Buy this if: you need IP68 protection for workouts and daily water exposure, and you prefer a no-screen wearable that syncs to your phone.
- Avoid or rethink if: you rely heavily on app stability and cannot tolerate freezing or sync hiccups.
- Avoid or rethink if: you struggle to find the right ring size, since fit affects comfort and sensor performance.
Alternatives to consider (by use case)
If you are exploring alternatives, compare by the same decision factors, health sensor coverage, comfort and fit, battery life, and app reliability.
- If you want simpler tracking: consider smart rings or wearables that focus only on heart rate and sleep, if blood pressure and SpO2 are not must-haves.
- If you want more on-device feedback: a fitness tracker with a small screen may be better than a no-display ring.
- If you want fewer app dependencies: look for devices with more robust offline behavior or clearer pairing guidance, since rings generally depend on the app for historical views and settings.
Verdict
This UniJethro smart ring is a compelling budget entry into ring-style health tracking, especially if you value comfort, IP68 durability, and battery life that supports day-to-day wear. The biggest practical question is whether the companion app performs reliably on your phone, and whether you can nail the right size and fit for consistent sensing. If those pieces line up, it can be a solid way to track daily activity, sleep, and key vitals without paying for an app subscription.
FAQ
Does this smart ring work with iPhone and Android?
Yes. It is listed as compatible with iPhone and Android, and it syncs to a companion app that displays health and activity data.
What health metrics does it track?
It tracks heart rate, blood oxygen, blood pressure, and sleep (including sleep patterns). It also monitors activity such as steps, calories burned, and distance.
How long does the battery last?
The battery is rated for about 3-5 days of regular use, and up to 7-10 days in standby mode, with an average life listing around 5 days.
Is it waterproof or water resistant?
It has an IP68 water resistance rating, listed as suitable for daily water exposure like hand washing, with a water resistance depth rating of about 1 meter.
Does it require an app subscription?
The ring is marketed as having no app subscription fee.
What are the biggest reasons buyers may be disappointed?
The most common friction points are app behavior (some buyers report freezing or functional issues) and making sure the size and fit are right so sensors stay positioned comfortably and consistently.
Is this a good fit if I want health trends rather than day-to-day alerts?
Yes. Because it has no display, it is best for users who check the app for historical data, trends, and summaries rather than expecting lots of on-ring notifications.
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 (Black, 11#) |
|---|---|
| Category | Electronics > Wearable Technology > Rings |
| Brand | UniJethro |
| Manufacturer | Unijethro |
| Model Name | R11M |
| Model Number | R11M |
| Color | Black |
| 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 | Resin, Stainless Steel |
| Water Resistance Level | Waterproof |
| Sport Type | Cycling, Diving, Fitness, Hiking, Multi-Sports |
| Supported Application | Fitness Tracker, Social Media, Camera |
| Water Resistance Depth | 1 Meters |
| 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 |
| Battery Capacity | 300 Milliamp Hours |
| Battery Cell Type | Lithium Polymer |
| Battery Average Life | 5 days |
| Display Type | No Display |
| Memory Storage Capacity | 32 MB |
| Target Audience | Unisex Adults |
| Age Range Description | Adult |
| Built-In Media | Charging Cable, Charging Case, Ring Protector, Smart Ring, User Manual |
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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