First of all, a big congratulations to @Oura , @WHOOP , and @Garmin Venu , they have been working closely with us to provide more detailed data, and this partnership has been vital.
The honest answer is that there is no shortcut. We’ve moved toward end-to-end integration, understanding exactly what each tool brings to the table and where its data is strongest. We reference research papers on device accuracy (e.g., which wearable has the most reliable HRV, which gives the best sleep) and work with labs to validate data quality.
The hardest part is not getting the data, but the solution. When your Apple Watch says one thing about your sleep and your Oura says something else, who do you trust? We’ve spent months building a reconciliation layer that weighs each source based on what it’s really best at, and we also let users set their own data source preferences per metric.
It’s still not perfect and we’re constantly refining it, but it’s this work that makes over 500 wearables truly useful.
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