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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.
US orders: Your Ava will arrive in 3-5 business days.
Canada orders: Your Ava will arrive within 10 business days. Your order is shipped with FedEx and unfortunately we cannot deliver to P.O. Boxes.
EU/UK orders: Your Ava will arrive in 3-5 business days.
Switzerland orders: Your Ava will ship 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 cleared 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 is non-returnable and non-refundable. In the case of material defects covered by our two-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: 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
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.
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.
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.