<!--
{
  "availability" : [
    "iOS: -",
    "iPadOS: -",
    "macCatalyst: -",
    "macOS: -",
    "visionOS: -",
    "watchOS: -"
  ],
  "documentType" : "symbol",
  "framework" : "HealthKit",
  "identifier" : "/documentation/HealthKit/HKQuantitySeriesSampleQuery",
  "metadataVersion" : "0.1.0",
  "role" : "Class",
  "symbol" : {
    "kind" : "Class",
    "modules" : [
      "HealthKit"
    ],
    "preciseIdentifier" : "c:objc(cs)HKQuantitySeriesSampleQuery"
  },
  "title" : "HKQuantitySeriesSampleQuery"
}
-->

# HKQuantitySeriesSampleQuery

A query that accesses the series data associated with a quantity sample.

```
class HKQuantitySeriesSampleQuery
```

## Overview

Use a series query to access the individual [`HKQuantity`](/documentation/HealthKit/HKQuantity) objects added to a sample using an [`HKQuantitySeriesSampleBuilder`](/documentation/HealthKit/HKQuantitySeriesSampleBuilder).

> Important:
> For many common calculations, consider using a statistical query instead. Statistical queries correctly handle quantity data, whether the samples represent a single quantity or a series.

## Topics

### Creating a Series Query

[`init(quantityType:predicate:quantityHandler:)`](/documentation/HealthKit/HKQuantitySeriesSampleQuery/init(quantityType:predicate:quantityHandler:))

Creates a new query for a series of the specified quantity type.

[`includeSample`](/documentation/HealthKit/HKQuantitySeriesSampleQuery/includeSample)

A Boolean value that determines whether the query should return the series sample.

[`orderByQuantitySampleStartDate`](/documentation/HealthKit/HKQuantitySeriesSampleQuery/orderByQuantitySampleStartDate)

A Boolean value that determines whether the query groups the results based on the quantity sample’s start date.

### Deprecated Mehtods

[`init(sample:quantityHandler:)`](/documentation/HealthKit/HKQuantitySeriesSampleQuery/init(sample:quantityHandler:))

Creates a new series query.

## See Also

[`HKQuantitySeriesSampleBuilder`](/documentation/HealthKit/HKQuantitySeriesSampleBuilder)

A builder object for incrementally building a sample that contains multiple quantities.

[`HKCumulativeQuantitySample`](/documentation/HealthKit/HKCumulativeQuantitySample)

A sample that represents a cumulative quantity.

[`HKDiscreteQuantitySample`](/documentation/HealthKit/HKDiscreteQuantitySample)

A sample that represents a discrete quantity.


---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)