WNRTSA Smart Ring for Women & Men (Stress and Sleep Monitoring, Blood Oxygen, IP68)
Quick take
The WNRTSA smart ring is an ultra-thin, no-display tracker for men and women that focuses on day-to-day health metrics like heart rate, stress and sleep monitoring, plus blood oxygen, with IP68 waterproofing. It’s designed to be comfortable for all-day wear, and buyers commonly mention straightforward setup and good step tracking. The main caveat is that battery life and metric accuracy can vary depending on how you use it and what you compare it against.
Pros and cons
Pros
- No subscription required, with health data synced to a phone app via Bluetooth.
- Comfort-first design, described as slim and lightweight for extended wear.
- Waterproof rating (IP68) supports everyday use.
- Tracks steps and sleep, with heart-rate and blood-oxygen monitoring included.
Cons
- No built-in display means you rely on the app for stats.
- Battery life appears to range by user, from around a couple days to about a week.
- Some metrics may read higher or differently than other wearables, especially for step counting.
What buyers think
Buyer-review evidence is limited, but the recurring themes point to a comfortable fit and an app that is easy to set up. Multiple buyers describe using the ring for steps and sleep, noting it works well for day-to-day tracking. Battery life is a frequent point of discussion, with at least a couple of reported experiences ranging from roughly two days to around a week, suggesting usage and expectations matter. Waterproofing is also mentioned positively, and the ring’s “traditional ring” look is appreciated by shoppers who want something subtle rather than bulky tech.
What this smart ring tracks (and what “no subscription” means for you)
This ring is built to support continuous wellness tracking without requiring a paid subscription. The included feature set is centered around common smart-ring goals: activity and movement (steps, plus calories mentioned in the product description), heart-rate-related monitoring, stress monitoring, sleep monitoring, and blood oxygen.
Because the ring has no display, the experience is phone-led. After syncing to the supported app on iOS and Android, you get your day-to-day trends and sleep information in one place. If you want quick glances on-wrist, this category may feel different from a smartwatch, but it can be appealing for people who want a lighter, less visible option.
Design and comfort: the “wear it all day” angle
Buyers consistently mention comfort and an appearance that looks like a regular ring. The hardware is described as ultra-thin and lightweight, and the shape is intended to stay snug on the finger. That matters with smart rings because comfort and fit influence whether you actually keep wearing it through the day and overnight.
The ring is also designed for everyday use with an IP68 waterproof rating, which is a key differentiator for swimmers or anyone who doesn’t want to remember to take off their tracker for routine water exposure.
Sleep and stress tracking: best for habit insight, not medical decisions
Sleep monitoring is a core use case for this ring, and shoppers who struggle with sleep report that the data helped them understand their habits. Stress monitoring is included as part of the wellness profile, which can be useful if your goal is noticing patterns over time.
Like most consumer wearables, treat the readings as lifestyle trends, not as medical measurements. If you need clinical-grade assessment, you will want to rely on professional guidance.
Battery life and charging expectations
Battery capacity is listed as 18 mAh. In practice, buyers report different runtimes, including around a couple of days for some users and close to a week for others.
If you are planning to wear the ring as an always-on sleep tracker, it’s smart to keep it charged enough for your overnight routine. Your actual battery life will depend on how consistently you track and how often the app syncs.
Accuracy and comparisons: where it seems to align, and where it may differ
For step tracking and sleep, some buyers who compare the ring to other wearables report that sleep results can be similar.
This suggests a practical takeaway: use the ring to understand your own trends, and if you are migrating from an established tracker, expect small differences rather than an identical match in every metric.
Who should buy it
- You want a slim, comfortable smart ring that’s easy to wear through the day and during sleep.
- You care about sleep monitoring, stress insights, and heart-rate related metrics, plus blood oxygen.
- You want IP68 waterproofing for everyday confidence.
- You prefer a no-subscription model and are okay viewing stats in a companion app.
Who should skip it
- You need a wrist display for at-a-glance stats, because this ring has no screen.
- You expect smartwatch-like accuracy consistency across all metrics when compared directly to a different device.
- You’re looking for GPS-based tracking, since there is no GPS functionality mentioned.
Price and availability
It’s positioned as an affordable smart ring option, with an example price shown as $39.99 and a higher list price displayed. Stock can be limited, so check the current status and price before ordering.
Verdict
The WNRTSA smart ring is a good pick if you want a budget-friendly, no-subscription ring that prioritizes comfort and everyday health habits. Buyers tend to like how it tracks steps and sleep, and the IP68 waterproof rating is a meaningful plus for normal life. If you’re sensitive to battery-runtime variation or you need pixel-perfect parity with another wearable’s step counts, you may want to set expectations accordingly.
FAQ
How long does the battery last?Reported battery life varies by user, with some experiences around two days and others around a week.
Does this smart ring require a subscription?No subscription is required for the health tracking features described, and data syncs to the app via Bluetooth.
Is it waterproof?It is rated IP68, meaning it is designed for waterproof everyday use.
Does it have a display?No, it does not include a screen. You view your stats in the companion app.
Does it track sleep and stress?Yes. Sleep monitoring and stress monitoring are part of its feature set.
What size should I choose?
Fit is important for consistent tracking. Buyers mention it being true to size, but you should still choose the size that matches your finger comfortably based on the sizing method provided at checkout.
Specifications
| Product Title | Smart Ring for Women & Men, Featuring Stress and Sleep Monitoring Functions, Blood Oxygen, Sleep Monitoring, Long-Lasting Battery, IP68 Waterproof Health Ring, No Subscription (Gold, 8#) |
|---|---|
| Category | Electronics > Wearable Technology > Rings |
| Brand | WNRTSA |
| Manufacturer | WNRTSA |
| Color | Gold |
| Operating System | Pebble OS |
| Additional Features | Activity Tracker |
| GPS Geotagging Functionality | No GPS |
| Water Resistance Level | Waterproof |
| Human Interface Input | Unknown |
| Supported Application | Fitness Tracker |
| Metrics Measured | Heart Rate |
| Shape | Round |
| Battery Capacity | 18 Milliamp Hours |
| Battery Cell Type | Lithium Ion |
| Screen Size | 0.1 Inches |
| Display Type | No Display |
| Memory Storage Capacity | 128 MB |
| Target Audience | Unisex Adults |
| Built-In Media | Smart Ring, Instruction Manual, Charging Cable |
| Warranty Description | 2 Year |
| Wearable Computer Type | Smart Ring |
| UPC | 784482257410 |
| Unit Count | 1.0 Count |
| Connectivity Technology | Bluetooth |
| Wireless Compability | Bluetooth |
| Compatible Devices | Smartphone |
Available variants
Color
- Gold
- Silver
- Black
- Rose Gold
Size
- 7
- 9
- 12
- 13
- 11
- 8
- 10
- 6
Recommended next
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 (Gold, 11#)
This UniJethro smart ring is a lightweight health and activity tracker that monitors heart rate, blood oxygen, and sleep, with fitness metrics like steps and distance. Buyers highlight comfortable all-day wear, simple phone setup, and a battery that typically lasts about a week. The main caveats are limited size availability and the reality that some app behavior may be less smooth if you multitask on your phone.
UniJethro R11M Smart Ring (Health, Sleep, Heart Rate & SpO2)
UniJethro’s R11M smart ring is a lightweight, IP68-rated option for tracking heart rate, blood oxygen, blood pressure, sleep, and daily activity, with a free app and a battery designed for about 5-7 days. It’s a good pick if you want an affordable “try-it” smart ring experience, but you’ll want to be careful with sizing and app stability as your setup consideration.
UniJethro Smart Ring for Women & Men (R11M) Health Tracker Ring
UniJethro’s Smart Ring (R11M) is an affordable, display-free health and fitness tracker designed for all-day comfort. It monitors heart rate, blood oxygen, blood pressure, and sleep, with activity tracking (steps, calories, distance) and a battery that runs about 5 to 7 days. The main buying caveat is that some users mention app freezing or reliability concerns, so it’s best for buyers who are comfortable troubleshooting basic app behavior and prioritizing convenience over premium ecosystems.
UniJethro smart ring for women & men health tracker ring
UniJethro’s smart ring is a no-display wellness and activity tracker that monitors heart rate, blood oxygen, blood pressure, and sleep, with step, calorie, and distance tracking via its optical sensors and accelerometer. It’s built for everyday wear with IP68 water resistance, and reviewers consistently mention comfort, simple setup, and solid everyday reliability, with one recurring caution about app stability.