Why are Huawei heart rate samples once per minute?

Huawei's public Health Kit only exposes the com.huawei.instantaneous.heart_rate stream, stored at roughly one sample per minute, plus activity-level aggregate…

Huawei's public Health Kit only exposes the com.huawei.instantaneous.heart_rate stream, stored at roughly one sample per minute, plus activity-level aggregate stats.

Terra passes this through unchanged. The sparse cadence is upstream, not Terra downsampling, and there is no per-second HR timeseries from Huawei to forward.

For per-second workout HR, the providers that expose it publicly are Garmin, Polar, COROS, and WHOOP.