How to get the health data of iphone from Apple watch?

Hello! Connect Apple Watch and iPhone in pairs, turn on all the settings of fitness activities in iPhone My Watch, turn off the energy-saving mode in fitness, and then use the following sports functions on Apple Watch:

1, fitness activity software-that is, three rings are used to represent activity (calories burned), exercise (strenuous exercise time that obviously accelerates the heartbeat) and standing (standing for one minute every hour).

2, fitness software-you can set up outdoor walking, outdoor running, outdoor cycling, indoor walking, indoor running, indoor cycling, elliptical machine, rowing, stepping, free training and other fitness modes, and record your own exercise results.

3. You can also install many third-party fitness software, such as seven-minute fitness. ...

4. measure your heartbeat with Apple Watch.

In this way, all the data you see in the health software on the iPhone comes from Apple Watch.