If you look up the best smart ring for women, one of the names that comes out is the Femometer Ring. But as a health wearable that just recently came out, you might be on the fence about its accuracy and overall reliability. In this Femometer Ring Review, we find out whether it’s a good device.
There are many smart rings available in the market today—most of which are designed to help users monitor their vitals on a daily basis. While some have more features than others, most smart rings share the same basic capabilities, such as monitoring heart rate, blood oxygen saturation (sP02), and so on. There aren’t that many smart rings made for specific purposes.
For this reason, the Femometer Ring is truly rare. It’s not the only smart ring created for women, but it’s the only one designed to specifically monitor a woman’s fertility period more than other vitals the user has. This makes it the better choice for women who are looking to conceive.
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In this article, we’ll take a look at the Femometer Ring’s features, how it performs, and if it’s worth spending your money on.
Femometer Ring Quick Summary
Before we start, here’s a quick summary of the Femometer Ring’s functionalities:
| Femometer Ring Features | |
| Heart tracking | ✅ |
| Sleep tracking | ✅ |
| Blood oxygen monitoring | ✅ |
| Stress monitoring | ✅ |
| Activity tracking | ✅ |
| Menstrual cycle tracking | ✅ |
| Price | $149 |
| Colors | Pink |
| GET FEMOMETER RING |
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Femometer Ring Review: Specs and Features
The Femometer Ring’s exterior is made using wear-resistant, non-fading oxidized porcelain. This gives the device its shiny white finish, which looks classy and stylish depending on what the user wears. Its inner surface is coated with UV paint to make it more comfortable to wear on the user’s finger for longer.
The smart ring is small. It’s 8mm wide and 3mm thick and weighs 3.8-4.2 grams, depending on the size the user chooses. There are four sizes—6, 7, 8, and 9—and the device only has two silver-plated charging contact points, which are both small enough not to be felt when the device is worn. To get the right fit, Femometer tells buyers to measure their index, middle, and ring fingers, then choose their size based on the second number if the measurements are different.
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The Femometer Ring has accurate temperature sensors, capable of measuring a woman’s basal body temperature (BBT) with an error margin of ±0.1°C between 30°C and 37°C. It can sync within 1 minute and can connect to an iPhone or Android smartphone within 3 meters, as long as there are no obstructions.
The device has an IP68 rating and is waterproof to a depth of 1.5 meters for up to 30 minutes. This means users don’t have to worry about wearing the Femometer Ring while taking a shower or bath, washing hands, and so on, as long as it’s not worn while swimming. The smart ring’s battery can go from 0 to 100% within 20-60 minutes of charging and can last for up to 7 days on a full charge.
The Femometer Smart Ring costs $149, and there are no monthly subscription fees. It works with a companion app and can be used with an iPhone running iOS 8 or later or any Android smartphone running Android 5.0 or later.
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What the Femometer Ring Is Best Used For
As mentioned, the Femometer Ring specializes in a few purposes, unlike other devices that boast general capabilities. Here’s what this device is best used for:
BBT Monitoring
The Femometer Ring can be used to track a user’s BBT while they sleep at night. BBT is used to determine if and when a woman is ovulating. The device’s temperature sensors are very accurate, and users won’t have to worry about it making errors in its BBT readings.
Tracking Ovulation
For women who are actively looking for the perfect time to try and get pregnant discreetly and easily, the Femometer Ring will be a great help. This device will monitor the user’s BBT to predict ovulation. It will also provide her with information regarding her fertility window, daily conception rate, and fertility guidance.
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Cycle Management
Users will be able to use the Femometer Ring to help them prepare for and manage their monthly periods. Using the device, women can gain insights into their period, receive guidance for PMS relief, and also get forecasts for potential menstrual symptoms that could occur.
Sleep Tracking
The Femometer Ring also works as an excellent sleep tracker. It can provide users with expert analysis of their sleep patterns, rate their sleep so they’d know if they are getting enough rest at night, and be informed as to how their sleep patterns change over time. These details can be used to help users improve their sleeping habits and reset their circadian rhythms.
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Femometer Ring: Pros and Cons
Because it is a specialized device created for specific purposes, the Femometer Smart Ring has some advantages and disadvantages that buyers should consider before spending money on it. Here’s a quick look at them.
Pros:
- Classy and stylish feminine looks.
- Durable materials.
- Fashionable and can be worn with different clothing styles.
- The temperature sensor is very accurate.
- Very effective at tracking ovulation and fertility periods.
- Real-time ovulation tracking.
- Personalized guidance for both fertility and PMS management.
- More affordable compared to other smart rings available today.
- No monthly subscription fees.
- All prime features, including fertility classes, are free for the first six months.
- 1-year warranty and 30-day 100% satisfaction guarantee lets buyers try it out worry-free.
- Short charging time, long battery life.
Cons:
- Doesn’t track other things such as heart rate, HRV, Sp02, and other vitals competing smart rings watch out for.
- Only comes in white color. Competitors such as the Evie Ring come in more than one variant.
- It works with women with regular cycles only, ranging from 28 to 35 days. Tracking won’t be accurate for users with cycles with fewer or more days.
- It might feel tight if the user’s finger gets bloated with changes in hormones.
- It holds data for only 5 days at a time.
- Water resistance is limited to a depth of 1.5 meters.
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Femometer Ring vs. Other Smart Rings
In this section, we’d like to offer a few comparisons to other options you might have. We’ve opted to compare the Femometer Ring to two wearables capable of tracking monthly periods so you can make better choices.
Femometer Ring vs. Oura Ring
The Oura Ring is considered the best smart ring in the market today thanks to its accuracy and its wide range of capabilities. That said, while it is accurate and boasts of many features that come as a result of 10 years of R&D, it does have some caveats. Here are some reasons why you should consider an Oura Ring instead of Femometer:
- Made using durable titanium.
- Has more sensors than the Femometer Smart Ring.
- More accurate measurements whether you’re awake or asleep.
- Tracks movements, whether the user is exercising or not.
- It works with over 40 apps to provide better insight into users’ overall health and fitness.
- Comes in many finishes, both glossy and matte.
Now, here are some reasons why the Femometer Smart Ring is better than the Oura Ring:
- It’s cheaper.
- It doesn’t have monthly subscription fees.
- It’s better for ovulation tracking.
For details, check out our Femometer Ring vs. Oura Ring Review!
Femometer Ring vs. Evie Ring
Movano’s Evie Ring is another smart ring designed for women’s needs. Unlike the Femometer Smart Ring, the Evie Ring also has other features that make it competitive in the smart wearables market. It is a competitor to other brands, including Oura, and deserves to be considered for the purpose. Here are some reasons why:
- Has more features than the Femometer Smart Ring.
- Comes in three colors.
- It can be used to track exercises, moods, energy levels, and vitals.
- Very comfortable even when the user’s fingers bloat with hormonal changes.
- The charger doubles as a carrying case—no worries about dropping or misplacing the device.
- The charger can be used to charge Evie on the go for up to 10 times.
Now, here are some reasons why the Femometer Smart Ring is better than the Evie Ring:
- It’s cheaper.
- It’s better for ovulation tracking.
For details, check out our Femometer Ring vs. Evie Ring Review!
The Verdict: Is The Femometer Smart Ring Worth Buying?
All that said—is the Femometer Ring worth buying at this time? We believe it’s both yes and no. This answer doesn’t consider the price of purchasing the device—what we consider important to choosing the Femometer Ring is your purpose for buying it.
If you’re a woman actively trying to conceive, the Femometer Ring will be useful. It will help you prepare for ovulation, become aware of your fertile periods, and provide you with suggestions on how to maximize your ovulation period. Satisfied users attest to the Femometer Ring’s accuracy and usefulness in this aspect and also mention that it’s comfortable and convenient to use.
This is especially helpful if you’re a career woman who really wants to start a family with your husband—or have more kids if you already have one. The Femometer Ring will help you stay updated regarding your monthly period, be aware of your ovulation days, and be guided when it comes to managing your fertility window and your PMS symptoms, if any.
On the other hand, if you’re looking for a smart ring that can help you monitor your fertility while also keeping track of your fitness and daily activities, the Femometer Ring might not be what you need at this time. It doesn’t have fitness tracking features. There are plenty of options in the market, but we recommend checking out the Oura Ring for better overall tracking or the Evie Ring for period tracking and exercise.
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