Do you need to sync to a smart phone to use this tracker?

For more accurate activity tracking and to access full functions, it is recommended to connect your fitness tracker with H Band app installed on your smartphone and input your personal information such as age, height, and weight into the H Band app, this information is used by the tracking algorithm to calculate your activity stats. Once the initial setup is complete, the tracker can operate independently, tracking your steps, distance, calories burned, heart rate, and blood pressure, without the need for a smartphone connection.