Improve Health and Activity & Privacy

Improve Health and Activity is designed to protect your information and enable you to choose what you share.

Improve Health & Activity sends activity, workout, and health-related information from your iPhone, iPad, and Apple Watch to Apple in order to develop, improve, and understand the effectiveness of health, activity, and fitness features. This may include raw and analyzed data from health and activity-related sensors. Your data will not be used for any other purpose, and does not include personal data.

The information collected as part of Improve Health & Activity includes data that is shown in the Health and Fitness apps on your iPhone, iPad, and the health and fitness-related apps on your Apple Watch, including certain data you have entered (such as age, sex, height, weight, and wheelchair mode state); information related to heart rhythm, including Irregular Rhythm Notifications (such as frequency and type of notifications, number and type of heart rhythm measurements, percentages of certain atrial fibrillation values, your interactions with different data types and relevant life factors, and the number and possible causes of inconclusive measurements); information from the ECG app (such as number of ECG recordings taken, results, and any associated symptoms); information from the Blood Oxygen feature (such as the results of successful measurements, specific number of measurements taken, and certain quality of measurements); information from the Mental Health feature (such as your interaction with the feature, whether and when you completed a clinical assessment, the frequency of your State of Mind logging, and the frequency and type of notifications enabled and your interactions with notifications); information from the Health Sharing feature enabling the sharing of your health data with your family and friends (such as number of sharing relationships, number of health topics shared, modifications to health topics shared, information related to the health trends generated and shared, and your interaction with Health Sharing notifications); certain information from the Health Sharing feature enabling the sharing of your health data with your health care provider (such as frequency of use; the minimum, maximum, and average number of health topics shared; and the numerical range of health care providers you are sharing health data with); information from your Medical ID (such as completed fields and your engagement with the feature); information related to your use of Siri to access your Health app data (such as when and how you interact with Siri to record health data types to the Health app or to read your information available in the Health app, what type of Health app data you queried, and the type of request you made, including whether you made a request to record information in or request information from the Health app); and information related to your use of the Medications feature (such as whether you logged a medication, the method used to log a medication, the creation of a medication schedule and actions taken related to such schedules, and your interaction with and use of Medications settings and notifications). Data sent to Apple may also include activity and motion data (such as stand hours, exercise minutes, flights climbed, altitude and depth, move ring completion percentage, physical activity level, workout data (such as type, mode, source, duration, and information related to the workouts you share), mobility-related information, accelerometer, gyroscope, general direction you are facing, and pressure data); information from the Mindfulness app (such as mindfulness session type and whether heart rate was calculated); wrist state and orientation; and information related to when and how you import certain verifiable health records data into the Health app, as well as related data displayed in the Health app (such as VO₂ max); number of times fallen and other fall and impact information; sleep-related information (such as sleeping respiratory rate values, sleep schedules and how they differ from recorded time asleep, motion data used to determine time asleep, and information related to sleep stages); information, symptoms, and results related to and derived from menstrual cycles, pregnancy, and cycle factors including the use of contraceptives (such as the detection of prolonged menstrual periods, irregular or infrequent menstrual cycles, persistent spotting, ovulation estimates, menstrual period and fertile window predictions, and reported at-home ovulation test results); information related to and derived from wrist temperature measurements (such as aggregated temperature measurements and other temperature-based information); headphone audio, environmental sound exposure levels, and sound reduction metrics; vision prescription and related fields; heart-related measurements and visualizations; information related to the Time in Daylight feature (such as the estimated time you spend in daylight and aggregate statistics of the ambient light values present); and certain information related to your use of Apple Fitness+ features and workouts. Apple may also receive information about how and whether other third-party fitness apps or devices are installed, used, or connected, your approximate location, your interactions with the Health app, how long you’ve been using Apple Watch, and your enablement of and engagement with activity and health-related apps, notifications, settings, and features. All of the above data may be aggregated or otherwise combined in a form that does not personally identify you and analyzed on your iPhone, iPad, and Apple Watch before being sent to Apple. This data may also be used by Apple to identify trends and estimate metrics for certain activity and health-related features.

In limited circumstances, Apple may share certain aggregated data with appropriate health and medical regulatory authorities as needed to support regulatory submissions. Data shared will not include any individual-level data or data that may identify you.

By enabling Improve Health & Activity, you agree and consent to Apple’s and its subsidiaries’ and agents’ transmission, collection, maintenance, processing, use, and disclosure of this information as described above. Apple may store this information with trusted third-party service providers.

At all times, information collected by Apple will be treated in accordance with Apple’s Privacy Policy, which can be found at

Published Date: September 18, 2023