If you use a Polar watch with an Android phone, Health Connect is your bridge to getting Polar data into other fitness apps. Polar Flow’s Health Connect integration transfers workout data, sleep, and daily activity — though like the Apple Health integration, some of Polar’s more advanced metrics stay within the Polar ecosystem. Here’s the complete setup.
How Do You Connect Polar Flow to Health Connect?
The connection is managed inside the Polar Flow app on your Android phone.
Step 1: Make sure Health Connect is available on your device. On Android 14 and later, it’s built into the system. On Android 13, download the Health Connect app from the Play Store.
Step 2: Open Polar Flow on your Android phone. Tap the More icon → General Settings.
Step 3: Find the Health Connect toggle and switch it to ON. Health Connect’s permissions screen launches automatically.
Step 4: Choose which data categories to share and tap Allow. Enable all available categories for the most complete data flow.
Step 5: Ensure Polar Flow is exempted from battery optimisation. Go to your phone’s Settings → Battery → App Battery Management and set Polar Flow to Unrestricted. This is critical on Samsung, Xiaomi, and OnePlus phones, which aggressively kill background processes.
Data starts flowing after your next watch-to-app sync. Open Polar Flow and wait for your watch data to transfer via Bluetooth, then the app pushes eligible data to Health Connect.
What Polar Data Transfers to Health Connect?
The data set mirrors what Polar sends to Apple Health: workout sessions (type, duration, distance, average heart rate, calories burned), sleep analysis (duration and timing), steps, active and resting energy, and weight if you log it in Polar Flow.
Data that does NOT sync to Health Connect: continuous 24/7 heart rate (only workout heart rate transfers), HRV and Nightly Recharge metrics, detailed sleep stages (REM, deep, light), Training Load, Recovery metrics, VO² max, running power, running index, GPS route data, and orthostatic test results.
The same limitations apply on both platforms — Polar keeps its most advanced analytics proprietary. For ScoreVitals users, workout heart rate data is the most valuable piece that does transfer, enabling TRIMP-based session scoring and ACWR injury prevention monitoring. The lack of continuous heart rate and HRV data limits the recovery pillar assessment.
How Do You Fix Polar Health Connect Sync Problems?
Battery optimisation is the number one issue on Android. Manufacturers like Samsung, Xiaomi, OnePlus, and Huawei use aggressive power management that can prevent Polar Flow from running in the background. Without background access, Health Connect writes simply don’t happen.
For Samsung phones: Settings → Battery and Device Care → Battery → Background Usage Limits → remove Polar Flow from Sleeping Apps and Deep Sleeping Apps. For Xiaomi/Redmi: Settings → Battery → App Battery Saver → Polar Flow → No Restrictions. For OnePlus: Settings → Battery → Battery Optimization → Polar Flow → Don’t Optimize.
Open Polar Flow after every workout. The watch stores data locally until it syncs to the phone app via Bluetooth. Open the app, wait for the sync animation to complete, then check Health Connect. Without this step, data stays on the watch.
Verify permissions periodically. Go to Settings → Security and Privacy → Health Connect → App Permissions and confirm Polar Flow still has write access to all categories. System updates can reset these.
Check Health Connect data directly. Open Health Connect (from Settings → Security and Privacy → Health Connect or by opening the app) → Activity or Sleep to verify Polar Flow entries appear. If data shows in Polar Flow but not in Health Connect, the permissions or background access are likely the issue.
Your Polar workout data is valuable — make sure it reaches Health Connect. Once the connection is stable, ScoreVitals can score your sessions and track your training load automatically.