Why don't some mobile phones have health systems?

Yes, the mobile phone health system belongs to the setting reason, and the user operates improperly.

Open settings, click Search, enter access rights, click three points in the upper right corner, click Display System Application, click Healthy Use of Mobile Phone, and close. Huawei's mobile phone comes with sports health, which can record all kinds of sports data and sports tracks. With the bracelet watch, you can also record health conditions such as blood pressure, pulse, heart rate and sleep.