Google Health partners with Flo to connect cycle tracking and wearable coaching

Google Health and Flo Health announced a multi-year partnership on October 12, 2026, to bring cycle tracking, wearable readings and personalized coaching closer together. Flo says Google Health has also made a strategic investment in the company. App syncing is planned for early 2027, alongside commitments to research and women-focused product development.

An investment and a two-way connection

The agreement brings Google’s wearable hardware and coaching together with a cycle-tracking platform that Flo says serves more than 80 million women each month. Flo will become Google Health’s featured women’s health partner inside its app. Flo says it remains an independent company; investment terms were not disclosed.

The planned connection works in both directions. Users who choose to link the apps will be able to bring wearable measurements into Flo, while Flo’s cycle information can appear in Google Health. The intended result is a more consistent health picture across the two apps, rather than separate views of cycle patterns and daily measurements.

Flo lists sleep, heart rate, heart rate variability, skin temperature and respiratory rate among the Fitbit signals intended to enrich its cycle predictions and symptom insights. Google’s Health Coach integration will use Flo data to connect cycle information with sleep and recovery, offering tailored guidance through Google Health Premium, including for users navigating perimenopause.

Permission for each data use

The companies say no data will move between the apps without explicit permission, given separately for each type of data and each purpose. Users will be able to withdraw that permission at any time. The consent commitment therefore covers what is shared and why, not simply whether the two apps are connected.

Both companies also make a specific promise about Flo data shared with Google Health: it will never be used for advertising or sold. They say it will not be made available to other apps or developers through Google’s health platforms. These are commitments attached to the planned integration, whose syncing rollout is still ahead.

Research goals, not diagnostic results

Research is another workstream in the agreement. Flo frames the program as an effort to prevent AI from inheriting gaps in women’s health research. The companies want to study how hormones shape sleep, heart rate, mood and energy, then develop models that better recognize patterns across those signals.

Their stated goals include recognizing early signs of perimenopause and symptom patterns linked to conditions such as PCOS, endometriosis and fibroids. Those are research aims, not announced diagnostic capabilities. Google also identifies pregnancy and postpartum recovery as possible research topics, extending the proposed work beyond monthly cycle tracking.

Flo says the research will use privacy-preserving techniques, including aggregated, pseudonymised and synthetic data, with clinical evaluation throughout. The companies also intend to develop standards for evaluating AI health guidance for women. Exploring how wearable signals could support Flo’s fertility work will be subject to clinical validation and regulatory review.

Product development is a separate part of the same partnership: the companies plan women-focused products combining Flo’s insights and algorithms with Google’s wearable hardware and sensors. Early 2027 is the stated timing for app syncing; neither announcement gives a start date for the research program or a release date for the proposed products.