H Band is an application designed to connect with smartwatches. The core features of this application are as follows: Smartwatch management: Users can connect their smartwatches to enjoy a more convenient lifestyle, including features like call handling, sedentary reminders, message synchronization, and app notifications. Data synchronization between phone and device: With the support of smartwatches, users can analyze their sleep patterns, heart health, exercise, and step count. Step countin