Easy and a quick way to understand your hardware status: - battery - storage - memory - Spec - Interact with your device * Support watchOS 4.0 or higher version Please ensure that the bluetooth is connected before starting Watch Doctor on your phone. The app will access your HealthKit and CareKit to identify device status and show your past health records, If you encounter any problems, please remove and re-install Watch Doctor. For any questions and suggestions, please contact us at [email protected]