I just started last night. A few days ago, I went to Mi's home to experience it. I felt that the 13 screen was not as good as my Xiaomi's. The 13 screen was relatively clear and clear. Today, I felt that it was OK after using it for a day. The main feature of 14 is that the signal is good. The call in the elevator is very clear and not intermittentThe sound quality is very good. It's also OK to take photos. It's worth having.