Femometer Vinca
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Femometer Vinca

$29.99
Quantity must be 1 or more
Tax included. Shipping calculated at checkout.

*Shipping for Vinca II & Butterfly is currently unavailable in Asian Market, Australia, New Zealand & Switzerland

Vinca pairs with the Femometer app to pinpoint your ovulation perfectly.

Automate BBT data recording & charting.

Vinca captures & auto-syncs BBT data to the app. The app is smart enough to find you 7 fertile days and predict ovulation, or show all of your safe periods based on your purposes (trying to conceive or using natural contraception).

Perfect for natural family planning.  

"Getting up early to measure & record BBT can be painful."

Complete measurements with your eyes closed!

Vinca can store up to 300 sets of data, so no need to unlock your phone for instant data syncing. Measure your BBT and hit snooze for an extra 15 minutes! 

Log more to get more accurate ovulation prediction.

Use the app to record major fertility symptoms like cervical mucus, Luteinizing Hormone alongside your BBT. It learns from them all to predict ovulation day even better.

Price
$29.99

Why Vinca?

  • "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.
...

Learn More

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.

Product specs

  • Measurements & Dimensions

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    Product Name: Femometer Vinca
    Model: FM-101-BT
    Size: 108.7mm*22.2mm*16.2mm
    Weight: 17g(without Battery)
    Transmission distance: Up to 16 feet
    Measurement: 89.6℉ - 107.6℉
    Accuracy: +-0.09℉(95℉ - 100.4℉)
    Battery: CR1632
    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

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    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

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    Standard shipping fulfilled by Amazon. Your order generally will arrive in 3-5 days.

    US
    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.

  • Warranty

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    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 support@femometer.com for further information.

What people think of Vinca

Customer Reviews
5 Based on 8 Reviews
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Filter Reviews:
JS
01/27/2020
Julia S.
United States United States
So convenient!

I've been manually charting for years (pen and paper) with a basal thermometer. Now that I have a baby, this became too difficult to keep up. Enter the femometer! It even has an alarm in the thermometer itself to remind me to pop it in my mouth before I start the day. It's cute (looks like lipstick!) and it keeps hundreds of data points so I don't have to chart every day. It works for us because we aren't using the app data to prevent pregnancy. (I know other apps warn against more days than necessary to be conservative, while this app isn't showing that.)

DP
01/03/2020
Dominik P.
Poland Poland
Vinca

This is my second thermometer Vinca (first i lost on holiday) . Im using this for natural birth control everyday.

ER
12/11/2019
Estefanía R.
Spain Spain
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!

LS
09/19/2019
Lydia S.
United States United States
Great item

Love this so far. Very accurate and easy to use.

RG
08/09/2019
Rosa G.
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!