Issues here too! Mine worked fine last night, and today says "No Data. App install needed." But I go to install and it says its suddenly not available on this device. Seems a lot of us have completely lost this feature.
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Hi @MARIACI and @mjaco, Welcome to the Fitbit Community! It's great to have you here!
Thank you for reporting this issue related to the SpO2 app.
Let me inform you this issue has been escalated. Our team is already aware of this situation and actively working on a solution. I appreciate your patience.
In the meantime, i recommend that you keep your Fitbit app up to date so you can receive the fix as soon as it is released. See How do I use the Fitbit app? > How do I update the Fitbit app? for instructions to update the app.
Best Answer