With so many smart ring brands claiming to be the ultimate solution to our health-related monitoring, I couldn’t help but be curious. I decided to delve into the world of smart rings and compare them for myself. So, I started with the comparison between Evie Ring and Ultrahuman Ring. Let’s see how they stack up.
While both smart rings claim to have near-perfect tracking and measuring of health metrics, I found that they are similar yet different in various aspects. So, here are my findings, which will surely help you understand both of them better.
Comparison Between Evie Smart Ring & Ultrahuman Smart Ring
I was already equipped with the Evie Ring and using it to track my sleep cycle, but I thought I would give a shot at the Ultrahuman Ring AIR as well and get my hands on it.
While I am pretty impressed with Evie’s design and the app, the Ultrahuman Ring also offers many new features in its app.
Though the Evie Ring is a women-centric smart ring, the Ultrahuman Ring is also capable of tracking several female-health-centric metrics. Moreover, Ultrahuman even has the Pregnancy mode to track trimesters, which is otherwise unavailable in the Evie Ring!
Design And Colors
The first thing that came to my mind was how the rings looked. I wanted an aesthetic accessory with smart features. While both rings are sleek and stylish, they look different from each other.
Ultrahuman is like a traditional round ring, and the Evie Ring is round with open edges. Ultrahuman offers rings in 5 different colors, i.e., Raw Titanium, Aster Black, Matte Grey, Bionic Gold, and Space Silver, while Evie Ring is available in 3 colors only (silver, rose gold, and gold). So, you have more color options in Ultrahuman than Evie!
Though I wanted the Rose Gold ring, I settled for the Silver one as the Rose Gold color was out of stock at that time.
Comfort And Durability
Since the Evie Ring is made of Liquidmetal (a Zirconium-based Amorphous alloy) with a Titanium PVD coating and the Ultrahuman Ring is made of Fighter Jet-Grade Titanium with a Tungsten Carbide Carbon coating, they both are pretty solid and durable.
I could wear them doing house chores, but the rings are prone to scratching when they abruptly hit anything solid. While I got scratches on Evie during the exercise, the Ultrahuman Ring got bruises when I accidentally fell on the floor. So, both must be handled with care.
| Specs | Evie Ring | Ultrahuman Ring |
|---|---|---|
| Weight | 3.2-3.7g (depending on ring size) | 2.4 – 3.6 g (varies with size) |
| Dimension | 8mm wide; 3mm thick | 8.1 mm wide; 2.45- 2.8 mm thick (varies with size) |
Though the Ultrahuman Ring is lighter than Evie, I find the Evie Ring more appealing because the ring’s design would help women wear it with swollen fingers as well.
Ultrahuman Ring, on the other hand, is nothing new. It is just a closed-circle ring that looks exactly like Oura, and I found it difficult to wear or remove it on certain days. At least it could have shown some creativity here rather than copying everything from only one brand!
Battery Life & Charging
My other major concern was the battery and charging duration. I am too lazy to charge my devices, and frequently charging an additional smart ring would be my new nightmare. So, I thoroughly observed their battery life and charging duration.
Evie Ring has a portable charging case that can hold up to 10 charges! The battery drain depends upon usage, and it can last up to 4 days. It takes 60 to 70 minutes to completely charge the Evie Ring. I prefer to charge it while cooking food or having a shower, as I don’t need much health tracking then.
| Charging Details | Evie Ring | Ultrahuman Ring |
|---|---|---|
| Official Ring Battery Life | 4+ days of battery life (varies based on usage) | 6 Days |
| My Ring Battery Life | 3-4 days | 4-5 days |
| Official Ring Charging Time | 60 mins | 1.5 hours |
| My Ring Charging Time | 60-70 mins | 1.5-2 hours |
Since the charging case is portable and easy to carry, I feel it is a good option for people like me who hate to carry charging cables. I prefer wireless chargers because they make it easier to charge my ring without having a physical power source. Plus, I can carry it anywhere in my pocket!
Ultrahuman Ring has a charging dock where you need to put the ring and connect it to the power source using the type-C cable. I found out during the charging process that it is better not to drain the battery completely and keep charging the ring before it drops below 30%.
Though the Ultrahuman Ring’s battery life is up to 6 days, it takes almost one and a half hours to completely recharge it from 0%, which is a long duration for charging a smart ring.
Honestly, I would like to have a cable-free charging option like Evie. Nobody prefers to charge gadgets for so long. At least Ultrahuman could have copied Oura for battery life as well!
Health And Fitness
Evie does a good job tracking my vitals and keeping track of my workouts, HRV, calories, active minutes, etc. I have noticed that it accurately detects my skin temperature variations during my periods. Evie’s sensors are quite effective in tracking SpO2 and HR. Ultrahuman also tracks similar metrics, but I haven’t noticed any sharp difference.
Evie doesn’t track stress directly. So, I have to analyze my sleep, respiration rate, heart rate, and other metrics to guess my stress level. Instead, it shows the Recovery level and gives user-based insights that I find quite helpful. Ultrahuman does a better job as it provides both Stress and Recovery details.
I keep a check on my activity levels throughout the day with workout logs and continuous activity tracking with the help of the Evie Ring. It’s Spot Check mode and Workout mode tracks heart rate accordingly. However, Ultrahuman does not have active minute tracking. It detects skin temperature and analyzes whether I am going to be sick or not. So, both of them have diverse features that add value to my health and fitness.
Sleep Tracking
I experimented with the sleep-tracking feature by wearing both rings for a few weeks and compared the results. Ultrahuman tracks my total sleep duration, resting heart rate, and restfulness. These metrics give a comprehensive picture of my sleep quality. I find its reading quite accurate as it tracks how many times I woke up and how many hours I spent sleeping.
Evie Ring also tracks my length of time in sleep stages, sleep quality, sleep patterns, and sleep respiration rate. It later shows my sleep cycle in a more elaborate form using a graphical representation. Using the sleep data, Evie analyzes other biometrics and generates sleep-related insights for a better sleeping habit. Thus, I find Evie’s sleep tracking more effective than Ultrahuman.
Sensors
| Sensors | Evie Ring | Ultrahuman Ring AIR |
|---|---|---|
| Red LEDs | Yes | Yes |
| Green LEDs | Yes | Yes |
| Infrared LEDs | No | Yes |
| Infrared PPG sensors | Yes | Yes |
| Skin Temperature sensors | Yes | Yes |
| Photodiodes | Yes | No |
| 3D Accelerometer | Yes | No |
| 6-Axis Motion Sensor | No | Yes |
A good smart ring has intelligent sensors to detect major to minute details, and that’s what I expect from my future smart ring! Both Evie and Ultrahuman Rings boast of having smart sensors that constantly measure different health metrics.
While they have several sensors in common, Ultrahuman does not have photodiodes like Evie. Similarly, Evie Ring does not have Infrared LEDs like Ultrahuman. The rest of the sensors are similar.
I find the Evie Ring’s sensors more reliable because they are tested in their labs. Although the Evie Ring is not FDA-approved yet, it has at least attempted to be a medical-grade and clinical device. Movano’s Evie allegedly has done multiple accuracy tests and surpassed the passing criteria.
However, Ultrahuman has not made any such attempts. Given the Ultrahuman’s copyright infringement controversy, I don’t trust it much now.
Accuracy
In terms of accuracy, neither Evie nor Ultrahuman smart rings are completely accurate. Since both of them are new contenders in the market, there is a huge scope for improvement in them.
Monavo claims that Evie’s pulse oximeter is quite accurate, and they are even seeking FDA clearance for them. The error margin has surpassed the FDA standards in SpO2 (2.3% margin of error compared to the FDA’s approved 3.5% error margin) and Heart Rate (1 BPM margin of error compared to the FDA’s approved 2 BPM error margin).
Until the FDA officially grants them certification, it is doubtful to assume their 100% accuracy. However, I find Evie’s efforts to become a medical-grade device encouraging.
Though Ultrahuman Ring AIR’s temperature sensor is a medical-grade sensor, it does not claim to be a medical device or its metrics as medically certified data. So, its claim to have complete accuracy is questionable. Ultrahuman Ring needs to improve its accuracy as per market standards to have more credibility.
Specifications
| Specifications | Evie Ring | Ultrahuman Ring AIR |
|---|---|---|
| Weight | 3.2-3.7g (depending on ring size) | 2.4 – 3.6 g (varies with size) |
| Dimension | 8mm wide; 3mm thick | 8.1 mm wide; 2.45- 2.8 mm thick (varies with size) |
| Ring Size | 5-12 | 5-14 |
| Connectivity | Bluetooth; allows Airplane Mode | Bluetooth |
| Ring battery capacity | 15 to 25mAh (depending on ring size) | 24mAh LiPo battery |
| Ring battery Life | 4+ days of battery life (varies based on usage) | 6 Days |
| Ring Charging Time | 60-70 mins | 1.5 hours |
| Charger | Portable Charging Case | Charging Dock & Type C USB Cable |
| Charger battery capacity | 385mAh | N/A |
| Portable charger battery | 10+ full ring charges | No |
| Charger battery charging time | 60 minutes | N/A |
| Water resistance | Up to 1M; IP57 | Up to 100 meters, higher than IPX9 |
| Dustproof | No | Yes |
| iOS Compatibility | iOS v16 or above | iOS 15 or later |
| Android Compatibility | Coming Soon | Yes (Android 6 or later) |
| Operating Temperature Range | -20° to 35° C (-4° to 95° F) | -20 to 60 degrees Celsius (-4° to 140° F) |
| Ring Sizes | 5-12 | 5-14 |
| Free Sizing Kit | Yes | Yes |
| FSA / HSA Eligible | Yes | Yes |
| Warranty | One year | One year |
| Compatible With Other Apps | No | Yes |
| Personalized Engraving | No | Yes |
Features
| Features | Evie Ring | Ultrahuman Ring AIR |
|---|---|---|
| Heart Rate | Yes | Yes |
| Heart Rate Variability (HRV) | Yes | Yes |
| Blood oxygen levels (SpO2) | Yes | Yes |
| Skin Temperature | Yes | Yes |
| Respiration Rate | Yes | Coming Soon |
| Sleep Tracking | Yes | Yes |
| Active Minutes | Yes | No |
| Distance Traveled | Yes | Yes |
| Steps | Yes | Yes |
| Movement Index | No | Yes |
| Phase Response Curve | No | Yes |
| VO2 Max | No | Yes |
| Activity Tracking | Yes | Yes |
| Calories | Yes | Yes |
| Workouts Tracking | Yes | Yes |
| Logging Menstrual Symptoms | Yes (log in manually) | Yes (log in manually) |
| Period Tracking | Yes (log in manually) | Yes (log in manually) |
| Fertility & Ovulation Prediction | Yes | Yes |
| Mood and Energy Tracker | Yes | No |
| User-based insights | Yes | Yes |
| Daily Summary | Yes | No |
| Personalized Goals | Yes | No |
| Spot Check | Yes | No |
| Stress Score | No | Yes |
| Recovery | Yes | Yes |
| Glucose Monitoring | No | Yes |
Evie Ring has several important features, like active minutes, mood, energy, spot check, etc., that are missing in the Ultrahuman Ring. I am impressed with Evie’s user-based insights and daily summary feature, which gives detailed information.
Though the Ultrahuman Ring lacks a few features of Evie, I must say that its glucose monitoring feature is quite amazing. The ring also tracks stress and gives a stress score. In Evie, I have to analyze my stress level by checking other metrics!
Moreover, Ultrahuman is also working to introduce the Respiration Rate soon. Though it has copied Oura too much, I appreciate Ultrahuman’s effort to add more features.
Evie & Ultrahuman’s Companion Apps
I liked the colorful graphs and pictorial representation of health metrics in the Evie app. It has vibrant colors that are attractive and amusing to the eyes. The app is very straightforward and user-friendly and shows important information, such as a daily summary, on the main page. Thus, I don’t have to open multiple tabs to get the complete information.
I am quite shocked to see that Ultrahuman has not just copied the Oura Ring’s sensors and metrics but also the copyrighted slide designs in their app. Though it is quite impossible not to see similarities between Oura’s app and the Ultrahuman app, I couldn’t ignore the fact that it is more thorough than Evie’s.
Originally, Ultrahuman had launched an app that could track home workouts, meditations, soundscapes, music, and bedtime stories only. Later, it copied the Oura app and added sleep, movement, and recovery tracking as well. The overall presentation is quite good and more elaborate than the Evie app.
I am quite impressed with its glucose monitoring feature and ability to sync with M1 gadgets. The app could measure the impact of my food intake and activity on my body through glucose monitoring in real time. Now, thanks to it, I am consciously developing healthy eating habits.
Prices & Subscription
Finally, let’s discuss the prices. After all, we all need a good smart ring within our pocket allowances. Evie Ring’s price is $269, irrespective of all three colors. Though I feel it’s a bit higher, it’s okay, as I don’t have to pay for a subscription to access the app.
| Pricing Details | Evie Ring | Ultrahuman Ring |
|---|---|---|
| Official Price | $269 | $349 |
| Subscription | Free | Free |
Ultrahuman Ring costs $349, which, in my opinion, is quite a huge amount, considering the fact that Ultrahuman is actually a dupe of Oura. Moreover, I had to pay for an additional Ultrahuman Premium subscription to access fitness hours. The price range varies, and it’s quite a huge amount to get a little more information.
Since both of them are new in the market, investing in the expensive one is not an intelligent decision. Though the Evie Ring is justifiable in this range, the Ultrahuman Ring is too expensive for its copied features and only has a few additional features like glucose monitoring.
While the Evie Ring is only available in the United States, you can buy the Ultrahuman Ring AIR globally from their official website. It delivers the ring worldwide except Pakistan, Israel, Ukraine, Lebanon, Syria, Sudan, Yemen, Ethiopia, Nigeria, Congo, Mali, Afghanistan, and Mexico. So, I feel that Evie should broaden its horizon to reach most regions.
Final Verdict
After researching them, my conclusion is that consumers can opt for the Evie Ring because it offers almost similar features like Ultrahuman at a cheaper price. Moreover, the Evie Ring’s design is best suited for female users as they won’t have to struggle wearing it on swollen fingers.
However, if you are an Android user and can invest more, you can opt for Ultrahuman Ring. Though it has copied the Oura Ring back and forth, it has several features, like pregnancy tracking, glucose monitoring, etc., that are not available in the Evie Ring. Still, I feel that the price is too high for these features, and you will need a subscription as well.
So, in my opinion, I won’t suggest you go for the Ultrahuman Ring. Instead, the Evie is a better option, if not the best.
Wrap Up
Comparing both smart rings was challenging because they are laced with advanced sensors, track several health metrics, provide detailed insights, etc. However, I focused on some of the basic yet major things that I would like to have in my own smart ring.
I enjoyed wearing the Evie Ring and its colorful app was great to use. In terms of charging and battery backup, I liked the Evie Ring over the Ultrahuman Ring.
Though Evie is a new contender in the market, it has tried to incorporate several important features, especially what women are looking for. Since it has no subscription at all and is cheaper than Ultrahuman, it is a better option.
