Hello LZ, I can tell you. I use X6. This mobile phone is Saipan S60.

The system of V5 is the same as that of 5800. Nokia's touch-screen smartphones now use the same V5 system.

. The function is ok, and the third-party software is practical. The function, I think, is similar to that of the 5800. The biggest difference is the different appearance, which is nothing more than changing the soup without changing the medicine. I hope LZ will adopt it.