CoreMotion

Read device motion, pedometer/activity, altitude, headphone, batched-workout, and submersion sensors with Core Motion. Scope: Swift 6.3, iOS 26+.

Contents

• Setup
• CMMotionManager: Sensor Data
• Processed Device Motion
• CMPedometer: Step and Distance Data
• CMMotionActivityManager: Activity Recognition
• CMAltimeter: Altitude Data
• Update Intervals and Battery
• Common Mistakes
• Review Checklist
• References

Setup