Surfr requires a minimum frequency of 100 Hz, meaning it collects 100 measurements per second to ensure precise height tracking.
If your device is stuck at a lower frequency, it may not meet the necessary performance requirements.
If you get this message on your Android watch, adjusting your screen timeout settings might help:
Open the Settings on your watch.
Navigate to Display settings.
Increase the screen timeout to the maximum duration (30 seconds or more).
If available, enable Always-On Display for better performance.
Attempt calibration again.
Once calibration is complete, you can revert the screen timeout setting to your preferred value.