Fitbit Air Health Guardian looks ready for September

Google has already narrowed Fitbit Air’s new Health Guardian features to September, and the latest Google Health app suggests the rollout is getting close. We dug through version 5.07.2 and found Blood Pressure Trends, Insulin Resistance Trends and Sleep Breathing Quality already wired into the app, with much of the supporting interface in place.

There is more here than a few feature flags

For Blood Pressure Trends and Insulin Resistance Trends, Google Health already contains dedicated routes, onboarding components and chart handling. There are also separate states for when the app has no trend data to display, including specific messages for no blood pressure trends data and no insulin resistance trends data.

That does not tell us anything new about how the two features work, and Google has already explained that publicly. What it does tell us is that the app is prepared to take users through setup, receive the resulting data and display it once the features become available.

This is particularly relevant for Fitbit Air because so much of the experience happens on the phone rather than the wearable itself. As we noted in our Fitbit Air review, the screenless tracker depends on Google Health much more heavily than a conventional smartwatch.

Sleep Breathing Quality reveals a bit more

Sleep Breathing Quality is where the APK actually gives us some information Google did not spell out in its announcement. The app defines four Sleep Breathing Quality levels, HIGH, MEDIUM, LOW and VERY_LOW.

Google had already said users would get a daily view of how much of their sleep was spent in optimal breathing, followed by a longer-term monthly assessment. It had not explained that the app would also categorise breathing quality using these four levels.

There is also more detail on how Google Health Coach fits in. One piece of text says Coach insights can cover factors ranging from sleeping on your back to having a drink too close to sleep, while another says daily breathing insights can feed into deeper trend analysis and recommendations for better sleep.

That gives us a slightly clearer picture of the feature. Sleep Breathing Quality will not simply drop another number into the Health tab. Google is preparing explanatory and coaching elements around the result as well.

By the end of this month?

The company’s device comparison page lists Blood Pressure Trends, Insulin Resistance Trends and Sleep Breathing Quality for September 2026. The Fitbit Air product page, on the other hand, still says “coming soon”.

Whether Google still plans another app update before launch is impossible to tell from the APK alone. But the user-facing pieces we found do not appear to be waiting for a future build.