---
title: HIDUsage.SensorsUsage.biometricHeartRateVariability
framework: corehid
role: symbol
role_heading: Case
path: corehid/hidusage/sensorsusage/biometricheartratevariability
---

# HIDUsage.SensorsUsage.biometricHeartRateVariability

## Declaration

```swift
case biometricHeartRateVariability
```