Button labels don't fit in buttons on laptop PC

Hi,

I created a frame and added 4 buttons with big fonts to a horizontal box sizer. Then I used setsizerandfit() method on my frame. On my desktop pc app looks fine, but on laptop pc the buttons appear smaller and labels don’t fit in the buttons.

I think its because two PCs have different resolutions/DPIs. How to make sure that the app looks exactly same on laptop as in desktop PC?