Huawei Health App can be searched and downloaded in the second-hand mobile phone mall, not limited to Huawei mobile phones. The specific steps are as follows:

1. Open the phone desktop and find the app store in the phone.

2. After entering the application mall, click the search option in the lower right corner.

3. Then search Huawei Health.

4. Then find Huawei Health APP in the search results.

5. Then click the Get button on the right.

6. Wait for the download to complete.