Description
Price: $199.00 - $28.99
(as of Nov 29, 2025 02:46:09 UTC – Details)
Product description
HEART RATE MONITORING
Continuous HRV tracking provides heart rate monitoring, Femometer Ring Gen2 helps you focus on your heart health and seamlessly with the free Femometer app.
SLEEP ANALYSIS
Professional sleep insights, track sleep stages (Deep, Light, REM) while you rest. Get detailed sleep scores and personalized recommendations.
STRESS MONITORING
Femometer Ring Gen2 provides stress insights, reminds you that you are in a tense state now, and proper relaxation is more beneficial to your health.
STEP/CALORIE MONITORING
24/7 health companion, steps, can count steps and calculate calories burned.Get real-time alerts when it’s time to move or rest.
SMART BBT TECHNOLOGY
Advanced BBT Technology, 1,400+ nightly temperature measurements
CYCLE TRACKING
Provides accurate cycle predictions and ovulation detection, smart algorithm helps identify and track ovulation.
1 Before Charging Tips
2 100m Water Resistant
3 More Accurate Temperature
4 24/7 Wearable
5 Femometer Smart Ring
Gen2
Femometer Smart Ring
CYCLE
BBT
SLEEP
Heart Rate/HRV/SpO2
Stress/Steps/Cal
Up to 7 days
Battery Life
Up to 10 days
Charging Case
Charging Method
Charging Stand
CYCLE
BBT
SLEEP
Heart Rate/HRV/SpO2
Stress/Steps/Cal
Up to 7 days
Battery Life
Up to 10 days
Charging Case
Charging Method
Charging Stand
Gen1 
Gen1
24/7 HEALTH COMPANION: Continuous heart rate monitoring and HRV tracking provide stress insights and health trends. Track daily activity, steps, and calorie burn. All health data syncs seamlessly with the lifetime free femometer app.
PROFESSIONAL SLEEP INSIGHTS: Track sleep stages (Deep, Light, REM), blood oxygen levels while you rest. Get detailed sleep scores and personalized recommendations.
ADVANCED CYCLE TRACKING: Revolutionary BBT technology with 1,400+ nightly temperature measurements provides accurate cycle predictions and ovulation detection. Part of trusted femometer ecosystem with 15M+ women worldwide.
COMFORT MEETS ELEGANCE: Just 2.7mm. Premium ceramic exterior with aluminum core ensures durability while weighing only 3.3g. Scratch-resistant, water-resistant to 100m, and designed for 24/7 wear. Size First with femometer Sizing Kit.
SIMPLE & RELIABLE: Up to 35-day battery life with quick charging case (stores 5 full charges). Pair with femometer app to get lifetime subscription. Compatible with iOS and Android. Includes 1-year warranty and dedicated customer support. Regular firmware updates ensure continuous improvement.
Customers say
Customers find the smart ring attractive and easy to use, with a straightforward app interface. They appreciate its tracking features, with one customer highlighting its effectiveness for sleep and TTC monitoring. However, the battery life and functionality receive mixed reviews, with some reporting great performance while others find it doesn’t work. Moreover, the ring’s durability is concerning, with multiple customers reporting that the outside ring cracks and it’s not scratch-resistant. Additionally, customers feel the product is not worth the money.
Mia –
Great health ring with amazing tracking features!
really love this health ring! Itâs super comfortable and tracks so many things. My favorite feature is the body temperature tracking â itâs so much easier than taking my temperature every day manually. I also like that the app lets you track pretty much anything you can think of, from calories and moods to symptoms, sex days, and even cervical mucus. It gives a really complete picture of your health.Another thing that really impressed me was the customer service. They actually reached out to ask for feedback so they could improve the app and product, which made me feel like they genuinely care about their customers. Overall, Iâm very happy with this purchase and definitely recommend it!
B.Ring31 –
Highly Recommend!
This ring is comfortable and easy to use with a lovely app that shows you so much information about your body. I love the BBT for tracking ovulation cycles. Now that we are pregnant I also love the information about our baby’s growth and development!It is waterproof, the sleep tracking and battery life are great. It has proven to be very accurate as well.
leslie m. –
Not scratch resistant
No scratch resistant as described. I can’t find the way to change my weight.
Destany & Thomas –
Cheap quality not worth the price tag
If I could give a zero I would. I had this ring for a month literally and the outside ring cracked, I donât do any heavy lifting or anything with it on. Then I went to take it off and the whole outer portion just came off leaving the inner portion of the ring still on my finger. It also doesnât do anything unless you constantly sync it. So in order for it to even register your bbt you have to go into the app everyday every morning and the whole point in buying this was so that I wouldnât have to go into an app and input this stuff. Also the battery is terrible last 3 days at the most. Donât waste your money itâs not worth it. Just buy and Oura ringâ¦
mamabear22 –
Excellent tracker for sleep and TTC
Iâm a huge fan of this product and the accompanying app. The ring is lightweight and attractive, the data has been accurate so far, and the app has a wealth of information to help inform and educate women about their bodies. You do have to charge the device every couple days depending on how often you refresh the data, but that wasnât a problem for me.
Joseph –
amazing product!!
loooove this product so much! my femometer has changed the game for me when it comes to tracking my cycle and other health data. it is very easy to use and is so accurate! typically, for biometric rings it is advised to wait at least 60 days after purchase for accurate female data, however, my femometer has been accurate since the very start! that impressed me right off the bat. it holds a charge for up to 4-5 days and then when you put it in the charging case it charges fully within a couple hours! i love how slim the ring is. it is very comfortable and most of the time i barely even notice that iâm wearing it. i love that there is no app subscription. i would 100% recommend this to any woman who wants to track their cycles or even just their sleep/health data.
Ashley Bennett –
Ring wouldn’t charge in case!
Ring would not charge in case, seemed to collect data pretty well. Had to return! Gonna splurge and get an Oura ring I guess!
Dr. Anne –
Good potential but NOT WATERPROOF!
My first one died after a week or two. It wouldnât charge or sync, and the ceramic cracked. I requested a replacement. After a brief delay (it was out of stock), the manufacturer sent me a new one. I quickly realized it was not very waterproof- I accidentally forgot to remove it while doing dishes. It had to spend some quality time drying in a bag of rice before it would charge again. The battery is supposed to last a few days. It lasts less than one day, so I can only wear it to bed and remove it during the day, much like a Tempdrop. So the activity tracking doesnât really matter. The sleep data has trouble syncing with Apple Health. The sleep duration does, but Apple canât interpret the sleep stage data. See photos. The first one is Apple Health. The second one is the Femometer app.
Ours –
Bague connectée qui permet de garder un Åil sur nos paramètres interne.Permet un suivi de la fertilité, température, ovulation pour les dames qui voudrait avoir un enfant.Le Kit comprend la bague, ainsi que le socle pour le rechargement de celle-ci, vous pourrez suivre vos résultats via l’application à télécharger.Un petit coup de pouce.
Greeneyes69 –
Awesome product. Does need charging every other day, But overall really good
kate pedley –
Really easy to set up and use following instructions and downloading app.I’ve managed to track my all over the place cycles making it easier to see when I’m ovulating.Well worth its price, would recommend
Aliocha –
J’ai adopté la bague Femometer il y a quelques mois et je ne la quitte plus.Sa discrétion est un atout, au quotidien, inestimé.L’application associée est très intuitive et me permet de suivre aisément mes cycles.Bien sûr, il faut un peu de temps pour s’habituer à la prise de température basale, mais les résultats sont là .Je recommande cet outil remarquable à toutes celles qui souhaitent mieux comprendre leur corps et planifier leur fertilité.
LxXxK –
After a thorough read of the instructions, it’s a really easy piece of equipment to set up and use, to complement a fertility pathway. My advice is to contribute as much information as possible to understand your own body and build the best picture (analysis) to help with conception and possibly fertility treatment.