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Ava Fertility Tracker


Ava 2.0 is the improved version of our clinically proven fertility tracking bracelet. It comes with a sleeker strap, optimized sensor pod for better performance and comfort, and a vibrating alarm. 

It uses sensor technology to reveal what’s really happening with your cycle—whether you’re trying to conceive, are pregnant, or simply want to better understand your body. Worn only during sleep, Ava eliminates the guesswork around tracking your cycle. Syncs with iPhone and Android. Tested for cycles 24 – 35 days. Not tested for PCOS. 

Pay over time options provided by Klarna. Minimum purchase value: $249. Choose Klarna as your payment method at checkout for a 0% APR offer over six months.*

Get Ava starting at $50/mo. for 6 mos.
Select your Ava 2.0 package:
Basic $299 Order Ava Now
  • Ava app and bracelet
  • In-app pregnancy tracking
  • Exclusive access to the Ava community
Best Value
Plus $399 Order Ava Plus
  • Ava app and bracelet
  • In-app pregnancy tracking
  • Exclusive access to the Ava community
  • E-book to guide your fertility journey
  • Special health, fertility, and pregnancy webinars
  • One-year guarantee of pregnancy*
Premium $699 Order Ava Premium
  • Ava app and bracelet
  • In-app pregnancy tracking
  • Exclusive access to the Ava community
  • E-book to guide your fertility journey
  • Special health, fertility, and pregnancy webinars
  • One-year guarantee of pregnancy*
  • Consult with our Ava-certified fertility coach**
Shipping & Delivery
Shipping & Delivery

Ava 2.0 orders will ship in 1-2 weeks.

Orders ship via USPS 3-day priority mail after leaving Ava; this is in addition to the shipping times above.

*Klarna promotional offer (US only). Minimum purchase amount for 0% APR Planned Payments is $249. Non-promotional purchases have a standard APR of 19.99% and are subject to a potential $2 monthly minimum interest charge. Estimation excludes tax and shipping charges. Subject to credit approval and terms. Klarna Credit accounts are issued by WebBank, member FDIC.

We are currently shipping to the US, the European Union (EU28), Switzerland, Liechtenstein, and Hong Kong. To find out when we’re shipping to your country, sign up here.

  • Included in delivery: medical grade sensor pod, USB charging cable, user instructions
  • Ava is adjustable and suitable for a wide range of wrist sizes
    • Minimum: 12.5 cm / 4.9 in
    • Maximum: 20.5 cm / 8.1 in
  • Designed in Switzerland, manufactured in Europe
  • Biocompatible materials
  • FDA registered and CE certified
  • Ava works with the Ava app for iOS and Android
  • Ava is not a contraceptive and cannot be used to prevent pregnancy
  • Ava works with the Ava App that requires iOS 10.0+ / Android 5.0+ or higher. The Ava App is optimized for iPhone® 6 and newer and major Android manufacturers.
  • Battery Life: 12 hrs (rechargeable)
  • Splash and sweat proof

Ava is non-returnable and non-refundable except in the case of material defects covered by our one-year limited warranty. If you think your Ava bracelet might be defective, please send an email to and we’ll be happy to help.

Ava Science Inc.
77 Geary Street – 5th Floor
San Francisco, CA 94108
Attn: Ava Women
United States

What makes Ava different?

  • It’s smart

    Ava is the only device to use resting pulse rate along with other parameters to detect the fertile window in real time.

  • It’s convenient

    With Ava, there’s no need to make any special effort to track your cycle. Just wear it while you sleep, and the rest is taken care of.

  • It’s real-time

    Unlike the temperature method, which only tells you after you’ve ovulated, Ava detects signs that the body is preparing to ovulate up to five days in advance.

  • It gives you more time

    Ava is clinically proven to detect an average of five fertile days per cycle—giving you and your partner more flexibility around planning for babymaking.

  • It's backed by science

    Ava was created by a team of doctors and researchers committed to advancing scientific understanding of the menstrual cycle. We don’t just make products, we conduct clinical studies and publish peer-reviewed papers.

  • It provides health insight

    In addition to your fertile window, Ava tracks your sleep, physiological stress level, and resting heart rate, providing a holistic understanding of your health.

Ava Reviews

    • Nicole
    5 / 5

    Wow! Wish they had this back in the day for my mom! I grew up watching her struggle to get pregnant with my little sister. Now, my sister and I are grown up and worried we’ll run into issues ourselves. I’ve just started playing around with it, but I like it so far. I think I’m mostly grateful for the piece of mind that there’s a device double checking me.

    • Anna
    5 / 5

    WOW! I was so sick of doing BBT that I spent forever trying to find a product that would make the process easier. I stumbled upon Ava and ended up signing up for much more than I expected. I can also keep tabs on my stress level and sleep now, as well as get a good look at my fertile window, WITHOUT PEEING ON STICKS OR WAKING UP AT ODD HOURS! Score! Super happy with this.

    • Caitlin
    5 / 5

    I have been using the Ava since in received it and I love it. I believe it has been 3 months now and it is so interesting to watch it change as it understands my body more and more last month. I can tell by the way it fluctuates the ovulation dates after it has received my data for the night that it is doing its job. I can’t wait to get pregnant so I can show my friends what an amazing product this is.

    • Sam
    5 / 5

    I was spending way too much time fumbling around with OPKs. I was mentally, physically, and emotionally exhausted with the TTC process. Finally, my husband and I saw an ad for Ava on Facebook, and decided to give it a try. I received my Ava last week and I’m just very grateful for how easy it is to use. I’ve had a few issues with syncing, but the band hasn’t broken/doesn’t seem like it will and customer service was helpful with my sync issues. This is already so much better than peeing on sticks – thanks for such awesome technology, Ava!

    • J.S.
    5 / 5

    I cant say enough about the customer service experience I had with Ava support. I emailed very early this morning concerned because I had lost the clasp to the tracker while sleeping (I swear, it disappeared into thin air), and was worried sick about it (I was testing a friend’s out before I purchased my own)…I had a response right away from the Rep, Natascha Hagger, to be exact, reassuring me (after some research on the initial order) that they would send another clasp out in 1-2 weeks. I was so very relieved to have had the help from Natascha today. Being hormonal anyway, this was a welcomed customer service experience that I will always appreciate! Thank you Ava!

* This is a random selection of reviews, please click here for more.

More Reviews

Is Ava right for me?

  • Yes: You have irregular cycles

    As long as your cycles tend to be within 24 – 35 days, Ava will work for you

  • Yes: You have endometriosis

    Ava can be used with endometriosis, unless there is severe scarring that interrupts ovulation

  • Yes: You’re breastfeeding

    Ava can be used while breastfeeding after your cycles have returned

  • No: You’re taking hormonal birth control

    Ava works by sensing physiological changes related to your natural hormone levels

  • No: You have PCOS

    Ava has not been tested with diagnosed fertility conditions that interrupt normal ovulation such as PCOS or hypothalamic amenorrhea.

  • No: You're looking for contraception

    In addition to your fertile window, Ava tracks your sleep, physiological stress level, and resting heart rate, providing a holistic understanding of your health.

1-year guarantee of pregnancy*
  • We strive to help our users to fulfill their dream of becoming pregnant faster and on their own terms, but unfortunately sometimes we are not able to. In the unfortunate event of unsuccessful tries over the course of a year we are offering a money-back guarantee for such cases.
  • 1-year guarantee of pregnancy means you’re protected if you wore the Ava bracelet continuously for at least one year and didn’t get pregnant during that time. You’ll get a full refund if the following conditions are met:
  • Your Ava bracelet has been shipped to you min. 12 months and max. 15 months ago.
  • You are the original purchaser of the Ava bracelet.
  • Ava has received your returned bracelet.
  • You haven’t become pregnant since you began using Ava (please note that while Ava cannot prevent miscarriage/pregnancy loss, these occurrences will not void this guarantee).
  • You have worn the Ava bracelet regularly. We require that you synced your Ava on average 80% of your cycle across all your complete cycles during the first 12 months of using Ava. A cycle is considered ‘complete’ when both the first day of your menses and the last day before the next menses are within the 12-month timeframe of first using Ava. In case of the unfortunate event of a pregnancy not carried to term, your time in pregnancy mode in the app will be regarded as one complete cycle. Days where Ava makes it impossible for you to wear your bracelet (e.g. during replacement shipping) or where you have technical syncing issues, count as synced days.
  • You allow the Ava Customer Success team to look into this data at the time you request a return.
Consult with our Ava–certified fertility coach**
  • Your fertility coach is not a doctor and will not engage in unauthorized practice of medicine. She is, however, an expert in the science behind Ava and has in-depth professional experience in guiding women through pregnancy and trying to conceive.
  • She takes all your questions, explains the science that is relevant to your case, guides you through appropriate next steps, and helps you find your way through the stage you’re in.
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