We are aware of some users receiving an error message when trying to sync their data (Error during upload on S3 / S4 / S6 / S9).
If so, please expect a delay for your data to appear in the app - your data could appear several hours after syncing.
Please keep your bracelet charged. There is no need to attempt to sync again in the meantime.
If your data doesn't appear before you go to bed, please wear your Ava as usual, and sync tomorrow. If a sync issue persists where you do not see the above Error message, please open a ticket so we can troubleshoot directly with you.

Wir sind informiert, dass einige Benutzer beim Versuch, ihre Daten zu synchronisieren, eine Fehlermeldung erhalten (Error during upload on S3 / S4 / S6 / S9).
Nach der Synchronisierung muss mit einer Verzögerung gerechnet werden, bis Ihre Daten in der App angezeigt werden. Die Daten können mehrere Stunden nach der Synchronisierung angezeigt werden, da die Daten nur langsam unsere Server erreichen.
Bitte stellen Sie sicher, dass ihr Ava aufgeladen bleibt. In der Zwischenzeit muss keine erneute Synchronisierung versucht werden.
Bitte tragen Sie heute Nacht, wie gewohnt Ihre Ava. Sollten Sie weiterhin Synchronsierungsprobleme haben, die nicht mit der obengenannte Fehlermeldung zusammenhängt, bitten wir Sie uns ein Nachricht zu schicken damit wir Ihnen weiterhelfen können.


I’m on a birth control pill. Can I start using Ava?
Ava is not intended to be used while you are taking hormonal birth control pills.   In most cases, you do not ovulate while taking birth control pills (if ...
Mon, 24 Sep, 2018 at 1:02 PM
Can Ava be used for contraception?
This is something we're very interested in offering in the future but for now, Ava isn't approved for use as a method of birth control. Ava should...
Thu, 14 Mar, 2019 at 5:31 PM
Should I wear Ava if I'm sick?
If you have the flu or have a fever, we do not recommend that you wear the Ava. This is because your skin temperature and heart rate may change or increas...
Mon, 24 Sep, 2018 at 1:01 PM
Do any medications affect my Ava results?
We have not tested Ava while using medications. Any medications that alter your natural physiology can have an impact on the accuracy of Ava's algor...
Mon, 24 Sep, 2018 at 1:01 PM
Can I send the information to my doctor?
Take a look at "Where can I find my cycle report?" and the rest of our Cycle Report FAQs to find out more on how you can receive a print-out of yo...
Tue, 4 Dec, 2018 at 2:39 PM
I wear a pacemaker. Can I still use Ava?
No, we do not recommend using Ava, as some of the sensors could interfere with a pacemaker. If you require the use of other electronic medical devices, ...
Tue, 13 Nov, 2018 at 3:57 PM
I have an irregular cycle and want to participate in your clinical trial. How can I sign up?
Thanks for your interest in Ava! We are so thankful for your support in wanting to participate in this trial.  If you have an irregular cycle and wa...
Thu, 14 Feb, 2019 at 2:19 PM
Can I wear Ava if I have a medical condition?
Should you have a diagnosed medical condition, we recommend that you first consult with your doctor before using the Ava. If the diagnosed medical condition ...
Mon, 24 Sep, 2018 at 1:03 PM