★★★★★
Ring sizer
Severod—January 9, 2026
It worked great and was very helpful Read more
MOMAX
MOMAX Smart Ring Sleep Tracker Fitness Tracker Intelligent Touch Control Heart Rate Monitor SOS Call Smart Ring for
$111.20$139.00
About this item
- 【Size Smart, Order Right】:Unlock a perfect fit and precise data with the momax Sizing Kit – your secret to flawless comfort. Or, select your standard ring size if you're certain.
- 【24/7 Health Monitoring】:Experience professionl-grade health insights from a device designed for unnoticed, all-day wear. This smart ring features high-precision monitoring of heart rate, SpO2, and skin temperature, coupled with detailed sleep analysis. With its IP68 waterproof rating, the Momax Smart Ring delivers comprehensive health data you can trust—24/7, from workouts to daily life and sleep.
- 【Comprehensive Sleep Decoding】: From Precision Monitoring to Scientific Recovery. It not only accurately tracks core data like deep, light, and REM sleep stages but also correlates this with daytime health metrics. This provides you with a scientific, quantified assessment and personalized interpretation of your body's recovery status, empowering you to truly optimize your sleep health.
- 【Wear Your Wellness, Effortlessly Stylish】:Crafted for all-day comfort and timeless style, this smart ring features an ultra-slim 2.4mm profile and a lightweight black stainless steel body weighing just ~4.5g. The versatile black finish pairs seamlessly with any outfit, while its 6-day battery life and 7-day offline data storage ensure your wellness journey remains uninterrupted—elegantly and discreetly.
- 【Work Smarter, Present Better】:Elevate your productivity with smart gesture control. Navigate PPTs, manage media, and take photos remotely. Enhance professionalism in meetings with silent vibrate alerts and a one-touch mute function, all designed for seamless, hands-free operation.
- 【Swimproof Smart RIng】:Engineered with a fully sealed structure and IP68-rated waterproof protection, this smart ring is designed to perform in wet environments. It reliably withstands water exposure during swimming, showering, and intense workouts. You can wear it continuously without removal, ensuring your health and activity data is tracked consistently through all daily activities.
- 【What You Get】:momax 1-Sense Smart Ring*1, Charging Case*1, 1m/3.3ft USB-C to USB-C cable*1, user manual*1, our worry-free 12-month warranty, and friendly customer service
$111.20
Was $139.00Save $27.80
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Product details
| Operating System | Momax Rings App |
|---|---|
| Memory Storage Capacity | 4 MB |
| Special Feature | Activity Tracker, Cycle Tracking, Daily Workout Memory, Multisport Tracker, Sleep Tracking |
| Battery Capacity | 16 Milliamp Hours |
| Connectivity Technology | Bluetooth |
| Battery Cell Composition | Lithium Ion |
| GPS | No GPS |
| Brand | MOMAX |
| Style | Black |
| Included Components | Charging Cable, Smart Ring, User Manual |
Technical specifications
| package_dimensions | 5.59 x 2.91 x 0.98 inches |
|---|---|
| item_weight | 15.8 ounces |
| batteries | 1 Nonstandard Battery batteries required. (included) |
| best_sellers_rank | #122,106 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #856 in Electronics & Gadgets #1,578 in Activity & Fitness Trackers |
| date_first_available | July 1, 2025 |
| manufacturer | momax |
| memory_storage_capacity | 4 MB |
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Customer reviews
4.148 ratings
★★★★☆
Could this be My Precious?
Alanis Smithee—November 6, 2025
This is my second go at a smart ring. The first one was a catastrophe. You can find the review in my profile. Since I like the concept of a smart ring to track my sleep, I wanted to give this brand a try. Just used it for two days and I will update my review in a few weeks. First impressions: Sleek design and good fit. Make sure you select the size of the ring according to how the ring is supposed to be worn! Set up was fairly easy. I am still figuring out the swipe settings to trigger other apps with this. There's not much help from the app or website. The app is pretty basic and could probably be improved to be more intuitive for set up. It has an SOS option, which I like, but due to previous experience with accidental triggers I am hesitant to activate it for now. Health/activity readings are accurate. I compared with my smart watch. For a more detailed tracking option you can sync the ring/app with Google Health if you choose to do so. Battery: So far so good. I fully charged the ring prior to first use and after roughly 48 hrs it's currently at 68%. That pretty good and promising. I changed to default settings to update less frequently to extend the battery capacity. I have had no connectivity issue whatsoever. It syncs ever time I open the app and Ibcan see in the history that it's been working according to schedule throughout the day/night. Another aspect I like about this ring is that it doesn't constantly light up like a Christmas tree or functions/readings are accidentally triggered. This was a big issue with the other ring I previously owned. This one is discreet and while somewhat bulky doesn't scream "look at meeee" every time you move your hand. It's also lightweight and comfortable to wear at night, which is why I wanted a ring in the first place. All things considered, I'll give it a cautious four stars for now. Read more
★★★★★
Works great!
marcmax—December 19, 2025
Does exactly what you needed it to. Perfect sizing based on these rings. Read more
★☆☆☆☆
Didn’t detect any sleep
KjunNurs—December 11, 2025
I was really excited about this for sleep and heart rate monitoring. Unfortunately the ring did not fit well in that if my hands got cold (it is winter) the ring was loose. But I was going to exchange it for another size. What broke the deal was when it did pick up sleep the entire time I used it. Read more
★★★★★
Very helpful to find your ring size
Tia:—December 6, 2025
Very helpful on finding the right ring size. Can even be worn as a ring if you choose to do that. Read more
★★★★★
Oura Ring sizers.
Kelly A.—November 19, 2025
Great cheap option to size for your Oura ring or others like it. Read more
★★★★☆
Great, be aware of index finger size, not ring finger
CATRINA—December 23, 2025
Good quality, should have sized up Read more
★★★★★
Accurate and simple
Joe in Denver—November 6, 2025
Very simple and provides accurate measure, both what fits and what gets over your knuckle ( an issue for me) Read more
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