Smooth in Unity

How can I apply to mesh Smooth in Unity?
I mean something like this.
I know, I can do it in 3d editor, but i need do it in Unity.

Problem solved!
‘Smoothing Angle’ in mesh setting.

Unity is not a 3D modelling program, it is a game engine.

You would be better off doing your smoothing first in a 3D modelling program and then importing your smoothed mesh into Unity.

‘Smoothing Angle’ in mesh setting.