---
title: identifier
framework: coremotion
role: symbol
role_heading: Instance Property
path: coremotion/cmrecordedaccelerometerdata/identifier
---

# identifier

The unique identifier for the accelerometer data.

## Declaration

```swift
var identifier: UInt64 { get }
```

## Discussion

Discussion Accelerometer data is recorded in batches, which are assigned a unique identifier. This property contains the identifier of the batch in which this particular sample was recorded.

## See Also

### Getting the Accelerometer Data

- [startDate](coremotion/cmrecordedaccelerometerdata/startdate.md)