sensorkit

To collect research-grade sensor data from iOS and watchOS devices, you need an Apple-approved research study setup with the com.apple.developer.sensorkit.reader.allow entitlement and explicit user authorization to access the sensors.

You can access ambient light, motion, device usage, keyboard metrics, heart rate, ECG, PPG, wrist temperature, speech metrics, face metrics, and phone or messaging usage sensor data on compatible iOS and watchOS devices.

Yes, health and sensor data collection with SensorKit requires the com.apple.developer.sensorkit.reader.allow entitlement, which is specifically restricted to Apple-approved research studies before any data recording can begin.

You can retrieve up to 7 days of prior recorded sensor data from an active iOS or watchOS sensor, but newly recorded data is held for 24 hours to allow for user review before becoming accessible.

Yes, a 24-hour hold applies to newly recorded sensor data for user review, meaning real-time data access is delayed, and you can only query up to 7 days of historical data from active sensors.

Yes, SensorKit allows you to monitor device usage and keyboard metrics, alongside other sensors like motion and ambient light, provided you have the required research entitlements and user authorization.