Insights on wearable data,
health AI, and open source.
Articles on building with wearable data, health scoring algorithms, and the Open Wearables platform.
· 5 min read · Polar
How to integrate Polar data into your health app
The Polar API (AccessLink) requires OAuth, token management, and polling. Open Wearables abstracts all of that into a single sync endpoint with normalized output.
Open Wearables Team
· 8 min read · Polar
Polar API: training, HRV and Nightly Recharge data
Polar AccessLink API provides training sessions for 100+ sport types, HRV4T nightly HRV tracking, Nightly Recharge, sleep staging and VO2 max. Here's what building with it requires.
Open Wearables Team
· 7 min read · Polar
How to access Polar watch data in your health app
Polar's cardio versus muscle load split and ANS Charge from Nightly Recharge enable coaching features that most wearable APIs cannot support. Here's how to use them effectively.
Open Wearables Team