What does Huawei mobile phone photo S mean?

This means that the shutter takes precedence.

Huawei mobile phone camera S stands for "shutter priority" or "shutter priority", and the value inside represents shutter speed. The higher the value, the shorter the shutter time. Shutter priority is to obtain aperture value through camera photometry when manually defining shutter, and shutter priority is mostly used to shoot moving objects.

The faster the shutter speed, the darker the picture and the shorter the exposure time. Shutter time is an important factor in shooting a good night scene. Among them,11000 seconds is considered as a fast shutter, suitable for shooting moving objects, and 1/8 seconds is considered as a slow shutter, which can shoot starry sky, traffic and so on.