There is a mobile phone camera function, which shows the time, place, temperature and weather after taking pictures. What is the function?

This is the function of using the watermark camera app. Take Xiaomi 8 mobile phone as an example, the usage method is as follows:

1. Open the watermark camera app on the mobile phone desktop, as shown below.

2. After turning on the watermark camera, select the watermark format in the lower right corner.

3. Choose a style in place and time, as shown below.

4. Go back to the camera home page to see when and where the watermark appears.

5. You can also return to the watermark format interface and select weather and time options, as shown below.