How to use Samsung's Global Goals app.Can anyone guide me regarding this

The panels of Samsung mobiles are expensive and light, which means that they are not strong. Once they fall down, the screen gets damaged. Samsung should think about it.  Did you ever have this problem?

If anyone knows, tell me what is the difference between A and S series۔إذا كان أي شخص يعرف ، أخبرني ما هو الفرق بين سلسلة A و S.

Which samsung model is water proof can anyone guide please.

I am a new user now. Does anyone know all the features of Samsung. Please tell me.