Product description
Gen1
Femometer Smart Ring
CYCLE
BBT
SLEEP
Heart Rate/HRV/SpO2
Stress/Steps/Cal
Up to 10 days
Battery Life
Up to 7 days
Charging Stand
Charging Method
Charging Case
CYCLE
BBT
SLEEP
Heart Rate/HRV/SpO2
Stress/Steps/Cal
Up to 10 days
Battery Life
Up to 7 days
Charging Stand
Charging Method
Charging Case
Gen2 
Gen2
Size Before You Buy – Before purchasing a femometer ring, we recommend purchasing a sizing kit to determine the best size for your finger. It’s the ideal way to find the perfect size.
How to Download APP – For Android users, please search and download “Femometer Connect”. For i0S users, please search and download “femometer”.
Make Fertility Tracking Easy – Only need to wear it on your finger to monitor your fertility temperature in real-time, the APP automatically synchronizes the data and generates customized fertility charts, predicts menstruation and ovulation to help you prepare for pregnancy and manage your period more scientifically.
High Accuracy & Comfort – Upgraded multiple temperature sensors, make the temperature measurement is more accurate. Just 2.7mm thickness. The inner ring material is upgraded, the premium ceramic exterior with aluminum core ensures durability.
Professional Sleep Insights – The new version of the sleep algorithm, you will have an in-depth understanding of your sleep condition and the changes in each stage, then get detailed sleep scores and personalized recommendations.
Jessica plum –
Easy BBT and sleep tracking
I have been using the ring for months now. I wanted to be able to give an honest review. The ring is tight but not uncomfortable. I can wear it on either the ring or middle finger. It has successfully tracked and showed the difference in BBT throughout my cycle. This is helpful since I’m trying to conceive.When I was having issues customer service quickly responded and helped me. The app for the ring is free and makes tracking easier. I would definitely recommend this ring for tracking BBT as well as sleep.
Rajon –
Accurate
Sizing was accurate. Suggest getting one
Amazon Customer –
Definitely try it
I bought this to help track my sleep but it has become so much more than that. The app syncs with my apple health so I have more data. I have been using it for 3 months now and I love the price point, the fact that the charge lasts so long and ease of use.
Elizabeth Hayes –
Don’t buy this!
Don’t waste your time! I have had two faulty rings now and have officially requested my money back! I was so excited for this ring and now that I have had two stop working out of no where after having them for less than 2 weeks annoys me! The first one stopped working after 6 days and the second one after 10. Kept on on charging it and everything and then stopped working out of no where!
Sb –
Helpful! Smaller feel than ring though
This is really helpful to determine your size. However, I wish I would have known that the ring is more slippery than these sizers are. I was between sizes and ordered up, but it’s borderline too big and I wish I had ordered down instead.
Michelle Necole Jones –
Great smart ring
recently purchased the Femometer Ring 1, and I couldn’t be happier with my decision. This smart ring has exceeded my expectations in several ways, making it a valuable addition to my daily wellness routine. I love that it tracks my sleep and well as predicting ovulation, so I can easily track my bbt as we are ttc! Also I have to add the ring is much more comfortable than the sizing rings.
Lrafl852 –
Great for BBT
I’ve been very happy with this ring! I use it to track BBT to help with cycle interpretation, specifically TTA pregnancy. The app works well, the charge lasts at least a week, and the daily sync of the BBT is quick. The ring fits well and is durable. It also tracks sleep. I find this ring much easier to wear at night than a smartwatch. If you are on the fence about buying it, I say do it. I’ve been nothing but pleased with the app and performance of the ring.
Claudia –
Good
Great value for the price and fast delivery