"Precision & Efficiency Matter."
Complete your measurement in as little as 30 seconds once Vinca gets familiar with you. The 1/100th degree precision ensures your bbt is always accurate.
"Silence is Golden!"
Vinca beeps to let you know she's ready to measure, or she just finished a measurement. Adjust the volume anytime in app in case you're worried about waking up the Sleeping Beauty...
"Subtle & Sweet"
Vinca's lipstick-like shape makes sure no one is easy to find out about your little secret of tracking ovulation unless you want them to.
"Dive deep into your fertility symptoms."
Together with the app, it tells more than just a result but also an unique "story" behind.
Work hand in hand with the Femometer App
Create a daily log of your cycle.
Receive personalized insights & tips.
Compare previous cycles.
Share data with health professionals easily.
How to use Vinca
Download our app, uncap the Femometer Vinca and pair via bluetooth. No need to pair again next time.
Put the metal tip of the Vinca under your tongue, keep your mouth closed and try not to move the thermometer around. When you hear three beeps, you've successfully measured your BBT. Now repeat this every morning - before you get out of bed and after at least 6~8 hours sleep.
The Femometer app learns from every piece of data you input and calculates your conception rate for each day. The app then provides personlized insights so you can prepare for your fertile window.
Download the Femometer app
Measure, track & learn everything about your cycle.
Understand (and love) your menstrual health.
Measure, track & learn everything about your cycle. Understand (and love) your menstrual health.
Measurements & Dimensions
Product Name: Femometer Vinca
Weight: 17g(without Battery)
Transmission distance: Up to 16 feet
Measurement: 89.6℉ - 107.6℉
Accuracy: +-0.09℉(95℉ - 100.4℉)
Receiver: Apple Devices: iphone 5 or above with version at lease IOS 8.0; Android devices: 4.3 or above and supports Bluetooth 4.0/4.1
Materials & Certification
Femometer is made by imported ABS material, Seiko Hall IC, 24-digit high accuracy data collection chip, low-energy Bluetooth chip as well as other finest materials, along with the finest craftsmanship, to help deliver the best quality a thermometer can be.
Shipping & Return Policy
Standard shipping fulfilled by Amazon. Your order generally will arrive in 3-5 days.
Free shipping for all orders. Free return & refund.
Rest of the World
Free shipping for orders over $30. $10 shipping fee for orders of $30 or below. Free return & refund.
This product is warranted from manufacturing defects for one year from the date of retail purchase. It does not cover damages or wear resulting from accident, misuse, abuse, commercial use or unauthorized adjustment and repair of the product. Please direct all returns to the place of the original purchase and retain your original receipt, as you may be asked to provide a copy as the proof of the purchase. Please contact firstname.lastname@example.org for further information.
What people think of Vinca
This is my second thermometer Vinca (first i lost on holiday) . Im using this for natural birth control everyday.
Realmente efectivo y recomendable
Es un producto excelente, tanto por su efectivo funcionamiento como por lo intuitiva que resulta su aplicación como por su bonito diseño. Lo recomendaría sin dudar. Si acaso, como punto de mejora, estaría genial que la aplicación contase con un sistema de machine learning que hiciera que los síntomas fueran tomados en cuenta a la hora de predecir las fases del ciclo, esto resultaría super útil para las personas con ciclos muy irregulares y sería un factor altamente diferenciador con respecto a otras aplicaciones que funcionan como meras calculadoras. En cualquier caso, ¡enhorabuena por el producto!
Love this so far. Very accurate and easy to use.
Best fertility app and BBT thermometer I've ever used
I cannot rate this app and thermometer highly enough. I've been trying to get pregnant for 5 years and I've finally found out why I've not been successful, and it's all thanks to the personalized insights I got from the app. I shared my data with a healthcare professional and they were able to give me the help I needed. I love the Vinca II and can't wait to try the Ivy product once it's released. Thank you so much Femometer!
Work great with my irregular periods
I only have one complaint but it's not with the product. To get an accurate reading of your BBT you need at least 6 hours of.solid sleep, which is hard with a new baby so I cant always use it. The product its self is really easy to use. I love that you can use it even with irregular periods, you dont have to have the app open to use it like similar products and the app has tons of features !!!