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Ava Fertility Tracker

From $299

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*
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

    • Janine
    5 / 5

    I’m taking Clomid this month and expected to ovulate around CD16. I was surprised to see that my fertility was showing as high on CD 12, so we BD’d when we probably wouldn’t have yet otherwise. Then sure enough, on CD 13 I got a positive OPK. That was very exciting and made me a believer! 🙂 There are definite opportunities for this product: I think many of us users trust the science behind the results, but would like visuals to see what trends the bracelet picks up, or how it’s detected my fertility window to show that it’s truly based on the sensors and not the cycle day. It could be that I have more to learn about using Ava, but with 9 different data points, we only get to see 4 of those and to see how things trend, we have to scroll through the days. Sounds like they are working on this now, but hopefully this will be added soon as it will be a huge part of Ava. Overall I’m incredibly happy with this product and I am excited and hopeful to conceive!

    • 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!

    • Krissy
    5 / 5

    Amazing product! It really showed me a lot of insight on my cycles. So much easier than temping everyday and using opks and so much cheaper in the long run!

    • Katy
    5 / 5

    Purchased the Ava watch after a year of debating on getting it or not. My husband finally got me one for valentines and the last 2 weeks it’s been amazing. I actually ovulated 5 days after I got it and it was so nice not having to get up a certain time and take my Basel temp or use any OPK. This does everything for you! LOVE IT

    • Joanna
    5 / 5

    Been TTC for almost two years. The stress of timing, trying to track my basal body temp, using ovulation tests, and clue in to other signs were unsuccessful. Wore my Ava for three cycles and just received a positive pregnancy test! The simple design and streamline app take away all the worry that comes with TTC. Easy to remember and convenient to take on travels. I’m very happy with my bracelet! 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.
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