femometer Smart Ring Gen2 Ceramic | Sleep, Heart Rate & Cycle Monitoring with Free Subscription | Women’s Health & Fertility Tracker with BBT Technology | Size Before You Buy – Size 9
$28.99
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.
13 reviews for femometer Smart Ring Gen2 Ceramic | Sleep, Heart Rate & Cycle Monitoring with Free Subscription | Women’s Health & Fertility Tracker with BBT Technology | Size Before You Buy – Size 9
Fast, Reliable, and Convenient
Enjoy seamless delivery with Amazon Store. Whether you're shopping for everyday essentials, electronics, fashion, or gifts, your order is delivered straight to your door—fast and hassle-free. With options like Standard Delivery, Express Shipping, and even Same-Day Delivery in select areas, Amazon makes it easier than ever to get what you need when you need it.
Mia –
Great health ring with amazing tracking features!
really love this health ring! It’s super comfortable and tracks so many things. My favorite feature is the body temperature tracking — it’s 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, I’m 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.
C.M –
Should I be worried?
So far I absolutely do love the ring! I wear it on my middle finger and grounded the sizing was a little weird overly I’m satisfied with it. But yesterday, the skin of it I guess you can call it begin to peel off I had to use super glue what a dry a little and then put it back in place. Overall though everything is still working fine the charge life is all that great but yeah!. Sleep tracking is very insightful and I would say that it’s the connectivity it can be slow at times but it works. Overall I want to say it’s pretty accurate though I’m worried about the durability.
Love the shoes. Really comfy to wear. –
Love My Ring!
Love my ring. Been using this every night except when it needs charging. Battery needs charging when it’s under 20% otherwise it may not track your performance or sleep properly.
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 don’t 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 doesn’t 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 wouldn’t have to go into an app and input this stuff. Also the battery is terrible last 3 days at the most. Don’t waste your money it’s not worth it. Just buy and Oura ring…
Ashley Noyes –
Great health tracking/ fertility tracking
Great product created by great people. Truly no subscription health tracking. Femometer is quick to discover faults and send out updates to resolve them without you needing to buy a new ring. I had the pleasure of being able to talk with them about my ideas and changes I would like to see as a customer and they were super receptive and encouraged me continue reaching out with any questions I might have. Very comfortable to wear and over all great product for a great price!
Kara Jones –
Not worth it, do you research on other products for your goal
I waited to write this review to give this product a fair shake, but honestly I don’t understand the hype. It is thick which is expected but takes some getting used to and if you deal with any swelling like myself this ring feels like a claustrophobic torture device in the middle of the night. I am struggling to see the benefits of it. I was using it to try and help track ovulation along with other products as well as my wonky sleep but it can’t provide me any helpful information. I know I have poor sleep I didn’t need it to know that. I just feel like depending on your goals there are other more beneficial products on the market. Also note they HIGHLY advertise there is no subscription needed and that is a lie, in order to use the app and see your results you much purchase a subscription before you can even create a profile!!
mamabear22 –
Excellent tracker for sleep and TTC
I’m 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 wasn’t a problem for me.
Ours –
Bague connectée qui permet de garder un œil 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.