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Get Ava starting at $50 per month for 6 months Minimum purchase value: $279. Choose Klarna as your payment method at checkout for a 0% APR offer over six months.*
Simply choose Slice it. Pay over time with Klarna in the payment section of checkout. After submitting your order, you will then be redirected to Klarna to complete your secure purchase.
*Klarna promotional offer (US only). Based on 0% APR. Promotional rate ranges from 0%-19.99% APR. Minimum purchase amount for promotional offer is $279. 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.
Ava Fertility Tracker
Whether you’re struggling to conceive or just starting on the journey to conception, Ava helps you achieve your baby goals faster than other methods.
Properly timing intercourse can double a woman’s chances of conception,1 but as many as 75% of couples get that timing wrong.2 Why? Because the fertile window is more than ovulation day. It’s also the 5 days leading up to it, with peak fertility 2 to 3 days before ovulation.
Go beyond ovulation. Take control of your cycle and make every fertile day count.
Syncs with iPhone and Android. Tested for cycles of 24 to 35 days. Not tested for PCOS.
- The Ava bracelet
- In-app cycle, fertility, and pregnancy tracking
- Membership in Ava’s exclusive online community
- Free shipping
- The Ava bracelet
- In-app cycle, fertility, and pregnancy tracking
- Membership in Ava’s exclusive online community
- Free shipping
- A full refund if you’re not pregnant within 12 months*
- The Ultimate Guide to Getting Pregnant e-book
Ava Basic
With the Basic bundle, you get:
The Ava bracelet
- Wear it at night and sync to the app in the morning for personalized insights.
The Ava app
- Select your mode:
- Fertility Tracking: detect your 5-day fertile window in real-time and double your chances of getting pregnant.*
- Cycle Tracking: keep tabs on the physical experiences associated with your cycle.
- Pregnancy Tracking: gain insight about your body as it develops and receive week-by-week updates on what to expect.
- Generate a comprehensive report of your last 12-recorded cycles for personal or medical use.
- Wake up peacefully with the bracelet’s vibrating alarm.
Membership in Ava’s exclusive online community
- Connect with women at the same stage in their reproductive journey.
- Share questions and find support.
- Receive the most up-to-date articles on women’s reproductive health.
Free shipping
- Let us make sure your bracelet gets to you, fast.
Ava Plus
With the Plus bundle, you get:
The Ava bracelet
- Wear it at night and sync to the app in the morning for personalized insights.
The Ava app
- Select your mode:
- Fertility Tracking: detect your 5-day fertile window in real-time and double your chances of getting pregnant.*
- Cycle Tracking: keep tabs on the physical experiences associated with your cycle.
- Pregnancy Tracking: gain insight about your body as it develops and receive week-by-week updates on what to expect.
- Generate a comprehensive report of your last 12-recorded cycles for personal or medical use.
- Wake up peacefully with the bracelet’s vibrating alarm.
Membership in Ava’s exclusive online community
- Connect with women at the same stage in their reproductive journey.
- Share questions and find support.
- Receive the most up-to-date articles on women’s reproductive health.
Free shipping
- Let us make sure your bracelet gets to you, fast.
A full refund if you’re not pregnant within 12 months*
- Receive your money back in the unfortunate event that you do not conceive within the first year of using Ava, if you synced an average of 80% on all your completed cycles during that time. See the full list of conditions here.
The Ultimate Guide to Getting Pregnant e-book
- See what the latest research has to say about how to conceive, broken down in an easy-to-follow format.
Ava Premium
With the Premium bundle, you get:
The Ava bracelet
- Wear it at night and sync to the app in the morning for personalized insights.
The Ava app
- Select your mode:
- Fertility Tracking: detect your 5-day fertile window in real-time and double your chances of getting pregnant.*
- Cycle Tracking: keep tabs on the physical experiences associated with your cycle.
- Pregnancy Tracking: gain insight about your body as it develops and receive week-by-week updates on what to expect.
- Generate a comprehensive report of your last 12-recorded cycles for personal or medical use.
- Wake up peacefully with the bracelet’s vibrating alarm.
Membership in Ava’s exclusive online community
- Connect with women at the same stage in their reproductive journey.
- Share questions and find support.
- Receive the most up-to-date articles on women’s reproductive health.
Free shipping
- Let us make sure your bracelet gets to you, fast.
A full refund if you’re not pregnant within 6 months
- Receive your money back in the unfortunate event that you do not conceive within six months of using Ava, if you synced an average of 90% on all your completed cycles during that time. See the full list of conditions here.
The Ultimate Guide to Getting Pregnant e-book
- See what the latest research has to say about how to conceive, broken down in an easy-to-follow format.
Your Ava will arrive in 3-5 business days.
We are currently shipping to the US, Canada, select countries in the European Union (EU28), Switzerland and Liechtenstein. 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
- Not for pacemaker wearers
- 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)
- Ava is neither waterproof nor water resistant. Please ensure the Ava device does not come into contact with any liquids.
Ava can be returned within 30 days of the order date in its unopened and sealed packaging for a refund, minus a $25 shipping-and-processing fee. Full details can be found in our FAQs. After 30 days, your Ava is non-returnable and non-refundable. In the case of material defects covered by our one-year limited warranty, please contact Customer Support and we’ll be happy to help.
See who's wearing Ava
What makes Ava different?
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More than temperatureLet Ava get to know your cycle through 5 physiological signals.*
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ConvenienceWear the bracelet at night, sync in the morning. Ava does the rest.
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Real-time dataSee your cycle phases and fertile window as they’re happening.
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More time to conceivePlan intercourse or insemination by knowing a full 5 fertile days.
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Backed by scienceHave confidence that Ava is clinically proven and peer reviewed.
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Not just fertilityTrack sleep, stress, and symptoms for an overview of your health.
Ava Reviews
Is Ava right for me?
The below is intended as a guideline. For more detailed questions about whether Ava is right for you, visit our FAQs and consult with your physician.
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Yes: Your cycle is regular and between 24–35 days
Ava will work with cycles slightly shorter or longer than the 28-day average, provided they are of consistent length.
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Yes: You have endometriosis
Ava can be used with endometriosis, unless there is severe scarring that interrupts ovulation.
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Yes: You're using an alternate conception method
Ava can be used to time conception methods other than intercourse, e.g. artificial insemination.
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Yes: You’re breastfeeding
Ava can be used while breastfeeding once your cycle has returned.
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No: You’re taking hormonal birth control
Ava works by sensing physiological changes related to your natural hormone levels.
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No: You have PCOS
Ava has not been tested with fertility conditions that interrupt ovulation, such as PCOS or hypothalamic amenorrhea.
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No: Your cycle length varies significantly from month to month
Ava has not been tested on women with irregular cycles that vary widely in length.
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No: You're looking for contraception
Ava has not been designed nor tested for pregnancy prevention.
Featured in
The wrist-worn device identifies fertile days. The average is identified as five per cycle, which is about two more than most other methods. This nearly doubles the wearer's chances to conceive.
Unlike many other fertility trackers, its makers say Ava can tell you when you're most fertile in real time, while most methods that use temperature and cycle-tracking alone work only in retrospect.
The wrist-worn device identifies fertile days. The average is identified as five per cycle, which is about two more than most other methods. This nearly doubles the wearer's chances to conceive.
Even if you're not thinking about starting a family anytime soon, knowing when you're fertile can be a really empowering thing.
Rather than only looking at a single factor of ovulation, like a urine ovulation test or the basal thermometer, the Ava has sensors that track nine different biological parameters.
A “12-month money-back guarantee” means you’re protected if you purchased the Ava Plus bundle, wore the Ava bracelet continuously for at least (1) year, and didn’t get pregnant during that time.
You’ll get a full refund if the following conditions are met:
- Your Ava bracelet was shipped to you at least 12 and no more than 15 months ago.
- You are the original purchaser of the Ava 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 period and the last day before the next period are within the 12-month timeframe of first using Ava.
- In the unfortunate case of pregnancy loss, 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.
- If above conditions are met and your Ava bracelet has been returned and received at our warehouse as instructed.
A “6-month money-back guarantee” means you’re protected if you purchased the Ava Premium bundle, wore the Ava bracelet continuously for at least six (6) months, and didn’t get pregnant during that time.
You’ll get a full refund if the following conditions are met:
- Your Ava bracelet was shipped to you at least 6 and no more than 8 months ago.
- You are the original purchaser of the Ava 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 90% of your cycle across all your complete cycles during the first 6 months of using Ava. A cycle is considered ‘complete’ when both the first day of your period and the last day before the next period are within the 6-month timeframe of first using Ava.
- In the unfortunate case of pregnancy loss, 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.
- If above conditions are met and your Ava bracelet has been returned and received at our warehouse as instructed.