HealthKit Types Introduced in iOS 12
3 of 241 identifiers · read from Apple’s documentation on 2026-10-02
Apple's documentation, as read on 2026-10-02, gives iOS 12.2 as the introduction version for 3 of the 241 HealthKit type identifiers in this dataset: all of them category types. All of them sit in Apple's Vital Signs topic group. None is deprecated. Every one carries an abstract.
iOS 12 by family and group
All 3 were introduced in iOS 12.2. The version is Apple’s iOS availability for each identifier; other platforms carry their own.
| Family | Identifiers |
|---|---|
| category types | 3 |
| Group page | Identifiers |
|---|---|
| Vital signs | 3 |
| Apple group | Identifiers |
|---|---|
| Vital Signs | 3 |
Deprecated, beta and undocumented in iOS 12
- Deprecated: none of the 3.
- Beta: none, as of 2026-10-02.
- No abstract and no discussion: none.
Every deprecated, beta and undocumented identifier across all releases is on HealthKit deprecated and beta types.
Every identifier introduced in iOS 12
Sorted by family, then name. Each name links to its row on its group page, where the Android equivalent and read-only flag sit beside it.
| Identifier | Family | Group | Apple’s abstract | Aggregate | Unit | iOS |
|---|---|---|---|---|---|---|
| highHeartRateEventHKCategoryTypeIdentifierHighHeartRateEvent | category type | Vital signsApple: Vital Signs | A category sample type for high heart rate events. | enum — HKCategoryValue | — | 12.2 |
| irregularHeartRhythmEventHKCategoryTypeIdentifierIrregularHeartRhythmEvent | category type | Vital signsApple: Vital Signs | A category sample type for irregular heart rhythm events. | enum — HKCategoryValue | — | 12.2 |
| lowHeartRateEventHKCategoryTypeIdentifierLowHeartRateEvent | category type | Vital signsApple: Vital Signs | A category sample type for low heart rate events. | enum — HKCategoryValue | — | 12.2 |
Questions
Which HealthKit identifiers did iOS 12 introduce?
3, according to Apple's documentation as read on 2026-10-02: all of them category types. They are highHeartRateEvent, irregularHeartRhythmEvent and lowHeartRateEvent.
Are any of the HealthKit types from iOS 12 deprecated or undocumented?
None of the 3 is deprecated in Apple's availability data. Every one carries an abstract.
Which value enums decode the iOS 12 HealthKit category types?
highHeartRateEvent uses HKCategoryValue, irregularHeartRhythmEvent uses HKCategoryValue and lowHeartRateEvent uses HKCategoryValue, according to this site's read of Apple's documentation on 2026-10-02.
Which Apple topic groups hold the HealthKit types from iOS 12?
Vital Signs (3). Every one of the 3 was introduced in iOS 12.2.
Computed by AIFitnessAPI from Apple’s published documentation, read 2026-10-02. Every release on one page is at HealthKit Types by iOS Version; the whole set with value enums is at every HealthKit type identifier, and the machine-readable export is on datasets.