Movano Evie Ring Review: One Flaw Keeps This Smart Ring From Shining – Forbes

While many people already own a smartwatch, a new wearable has recently emerged to great buzz: the smart ring. Samsung and Oura already launched their own versions, but a new one just entered the market: the Evie Ring by Movano. Unlike its predecessors, the Evie Ring is designed specifically for women and women’s health in mind.
The Evie Ring comes in three different colors and plenty of different sizes.
I spent several months testing out the ring, wearing it daily and checking its app insights to see how it performed. I also consulted medical experts and spoke with Movano executives John Mastrototaro, CEO; and Stacy Salvi, VP of product and strategy; to learn more about the device. In short, it left me impressed–but there are some major caveats that give me pause. Read my Movano Evie Ring review to find out more.
Evie
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Materials: Liquidmetal with titanium PVD coating | Weight: 3.2-3.7g depending on ring size | Dimensions: 8 mm wide, 3 mm thick | Connectivity: Bluetooth | Ring battery: Up to four days | Portable charger battery: Over 10 full ring charges | Sensors: Red and green LEDs, Infrared PPG sensors, skin temperature sensors, photodiodes, 3D accelerometer | Water resistance: Up to 1 meter | Sizes: 5 – 12 (8 total), full sizes only
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The Evie Ring comes in three colors: silver, gold and rose gold. I received the gold and was pleasantly surprised by how sleek it looked. Its simple design is so striking, in fact, that my mother commented on it when she saw it on my hand and asked where I got it from. It looks fancy.
That being said, while it looks good, it doesn’t feel sturdy. Underneath the gold trim, you can see microchips and a sensor-filled plastic underbelly (I’m not sure if the Liquidmetal with titanium PVD coating applies underneath the gold here). It’s this underbelly where I felt the ring was most dicey and breakable. While I would feel confident wearing it during yoga or pilates sessions, I wouldn’t trust it to withstand pressure during any kickboxing sessions, for example.
The Evie Ring has a fancy design. It looks like a regular ring but has a fun flair to its build.
Aside from the ring, you also get a small white charging case and a USB-C charger. Simply put the ring into the case and it charges quickly. I do strongly recommend that if you’re considering this ring that you opt for the free ring sizing kit first, especially since it only comes in full sizes. It will save you the headache of exchanging an ill-fitting ring. Also, according to Movano, “Evie’s sizes differ from traditional rings and are designed to adapt to natural changes in body size.”
The Evie Ring takes several clumsy minutes to pair with the app. For each ring test, it took the ring a few attempts to connect to my phone and get set up. And it’s important to note that this was only the beginning of the glitches.
Once it has been set up and paired with the app, the Evie Ring does exactly what it’s designed to do: track my health stats. It breaks the main stats—sleep, steps, active minutes and calories–down into one handy circular view. The app also breaks it down further, offering journal logs for moods, menstrual cycle, goal setting and spot-checking my heart rate and oxygen levels. It’s very useful.
One issue caught my attention, though—there is a massive step discrepancy based on my testing. Since every step tracker is designed with a different accelerometer design in mind, how it translates into a step count can vary. In the case of the Evie Ring, according to Salvi and Mastrototaro, the team behind it spent months repeatedly placing it on their finger, counting their steps, and checking its 3D accelerometer accuracy once they’d counted to 500.
Pitting it against my Samsung Galaxy Ring, I noticed significant differences in step count. One day I would show 5,585 steps on the Samsung, while on the Evie Ring, I logged 8,265 steps. It’s not the end of the world—I can still track to an extent how I’m staying active. But based on my (admittedly) fairly sedentary lifestyle, I suspected the Evie Ring counted some of my keystrokes. This happened with every Evie ring I tried.
But that’s not to say that it’s not doing what it intends to do. After all, this is a ring designed with women in mind–an often-overlooked demographic based on my own personal experience. I can open the app, update my moods and add in my cycle tracking to get a better understanding of my physical, mental and emotional health. I like that I can do that and get a bigger, easy-to-digest picture of my health, because the app makes it easy to do just that. Comparatively, in my Samsung Health app, I have to open up the steps tab and then I can review my history. With the Evie Ring, I can see my daily health stats as a whole picture—something that I can digest easily on the fly as I’m navigating my hectic schedule.
On the far right is a Samsung Galaxy Ring; the ring on the middle finger is the Evie Ring.
But the other issue I had with this device is a bigger problem. At the time of this writing, I’ve gone through four separate Evie rings during my testing period. With each one, there has been a glitch bad enough for the company to need to send me a new one. To clarify: This is somewhat normal in brand-new devices, especially as folks like me get into the testing weeds. I’ve had previous instances where I’ve required a replacement device due to software glitches, but up until now, the second unit has always been fully functional. This time around, not so much, as the second and third ones stopped working and errored on me, too. I’m not sure if I’m just unlucky when it comes to testing this device or if this is a larger issue. I can’t fathom why I’ve had to troubleshoot so much and replace this ring multiple times, and it’s something to consider if you’re interested in this ring. That being said, so far, my fourth ring is still trucking along just fine, so I’m cautiously optimistic that Movano has sorted out the first-gen glitches.
To date, I haven’t heard whether the medical community accepts these devices as suitable health trackers. Because I had questions about a wearable smart ring in the health sphere, I spoke with Anna Barbieri, M.D., FACOG; assistant clinical professor in the Raquel and Jaime Gilinski Department of Obstetrics, Gynecology and Reproductive Science at the Icahn School of Medicine at Mount Sinai in New York, about the health science surrounding the Evie Ring.
As it happens, there are plenty of useful cases in which the Evie Ring can help provide a medical professional more health insights. One area that it can help in, according to Barbieri, is your menstrual cycle, especially if you’re unsure whether your cycle is regular. “It is not normal not to have your period,” she says, adding that it can be irregular when you’re perimenopausal. “But outside of perimenopause… it’s not normal to have very significant cycle variability. It can be fine to have your cycle different by a day or two, but a cycle? That’s different. By more than seven to ten days is not normal.”
One of the Evie Ring’s big features is that it can help make this information more easily digestible for both the patient and the physician. And having this data in one easy place to read and understand is essential to helping diagnose any potential concerns. After all, Barbieri adds, “That really helps to identify to women that they may need an investigation into potential endocrine issues and hormonal issues, including their fertility, potentially. A lot of women care about this and [a tracking device] can help them assess that earlier.”
However, as a physician, Barbieri cautioned me on using the Evie Ring as my main tracking device, especially as a female. There simply hasn’t been enough evidence to support the validity and usefulness of these devices in the medical field. While this applies to all female populations, her focus as a physician is for perimenopausal and menopausal populations, and so she spoke to that. “To my knowledge, we don’t have a lot of good studies, focusing specifically on this mid-life female population. And I think that would be very useful, and a very rich area to examine.”
The charging case is sleek and easy to use for charging.
Despite her caution against using the ring as my main tracking device, I still felt that it did exactly what it was intended to do, and I appreciate the option of taking all my health data on my phone into my medical appointments if need be. Providing it’s working properly, that is.
Fortunately, I’ve noticed in the weeks of testing that while there were some in-app glitches initially, they’ve mostly gone away. Since this is a first-gen device, I expect the rest of them to vanish as Evie unveils more features and health-tracking options.
In terms of battery life, this fitness tracker is hard to beat. For context, my Samsung Watch 5 Pro and my husband’s Samsung Watch 6 last at maximum two days on a single charge. Most days, I have battery saver on to extend that life to hit that target, too. The Evie Ring, in contrast, lasts for multiple days on a single charge, and consistently hit four days. It lasted so long that there were times when it died because I forgot to charge it. I would have loved to see a notification pop up when the battery was low, but if you’re consistently tracking your data, the battery life is listed front and center to help you remember.
The Evie Ring is also water-resistant up to 1 meter underwater. It’s handy for when I’m washing dishes, but I wouldn’t recommend wearing it to a pool or a beach. I wouldn’t feel comfortable submersing it in salt water, personally.
I liked the Evie Ring more than I thought I would. Its subtle, minimalist design looked great with my style. But more important, while the accelerator may have been questionable, I loved that it could track my health data for days without needing a recharge. Also, I found the app intuitive and easy to digest. Women who want a snapshot of their health data in quick snippets will love this ring.
For women who may be more interested in keeping track of their health data for, say, fertility purposes, or for those who just want to make sure that everything is tracking normally, it’s a great option. But keep in mind that this only applies to iOS users for now, and Android fans can’t enjoy using this device. That’s a problem.
And, of course, there’s also the issue of the constant glitches. I can’t fully recommend a device that has consistently stopped working for me. If you don’t mind pushing through the quirks of a first-generation device, I say go for it. However, after needing the replacements for nonworking rings sent to me, I’m not sure I have the patience to keep replacing something that should have worked the second (if not the first) time.
I wore the Evie Ring for several weeks, checking my health stats daily, logging my moods and cycle and more. I took a deep dive into the app, noting its features and its flaws.
Because it has a built-in battery that lasts for days, I tested the battery to see how long it lasted. I went on daily walks and wore it during commutes and errands across the city, cross-checking the step count and other health-tracking features to see if they differed with other devices in tracking, and if so, by how much.
As the consumer tech and electronics editor at Forbes Vetted, I’ve been covering tech for over five years. In addition to working with home entertainment, such as testing the best gaming TVs, I have also tested most of the latest smart wearables currently on the market, from the Ray-Ban Meta Smart Glasses to the Apollo Wearable and more. I’ve also tested most Samsung mobile devices available, including the Samsung Galaxy Z Flip 5, the Samsung Galaxy Z Flip 6 and the Samsung Galaxy S24 Ultra—the latter of which was used to test the Samsung Galaxy Ring, a direct competitor to the Evie Ring.
My time testing wearables focuses on everyone, from the casual folks who want simple, no-frills health tracking to the person who wants the best fitness tracking to train for their next marathon. For this story, I focused on the new Movano Evie Ring as a whole, including its accuracy as a first-gen health tracker and the iOS app’s intuitiveness.
When I’m not covering wearables, you can find me on my sofa testing the best gaming TVs, trying out the best gaming headsets or reading up on the latest consumer tech news and trends.

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