---
title: z
framework: sensorkit
role: symbol
role_heading: Instance Property
path: sensorkit/srphotoplethysmogramaccelerometersample/z
---

# z

The z-axis acceleration in G’s (gravitational force).

## Declaration

```swift
var z: Measurement<UnitAcceleration> { get }
```

## See Also

### Accessing accelerometer data

- [nanosecondsSinceStart](sensorkit/srphotoplethysmogramaccelerometersample/nanosecondssincestart.md)
- [samplingFrequency](sensorkit/srphotoplethysmogramaccelerometersample/samplingfrequency.md)
- [x](sensorkit/srphotoplethysmogramaccelerometersample/x.md)
- [y](sensorkit/srphotoplethysmogramaccelerometersample/y.md)