Ring sizer
It worked great and was very helpful Read more
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MOMAX
In Stock
In Stock
| 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 |
| 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 |












Product video 1
It worked great and was very helpful Read more
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
Does exactly what you needed it to. Perfect sizing based on these rings. Read more
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 on finding the right ring size. Can even be worn as a ring if you choose to do that. Read more


Great cheap option to size for your Oura ring or others like it. Read more
Good quality, should have sized up Read more
Very simple and provides accurate measure, both what fits and what gets over your knuckle ( an issue for me) Read more