I am making a calculator for Apple Watch I have inserted a group and inside that I have added 4 button but I can't find any option that those 4 buttons should adjust on both Apple Watch screen.
Apple Watch 38mm
Apple Watch 42mm
Group Properties
Button Properties
Use one WKInterfaceGroup
per row and in the size inspector set "Relative to Container" width to 1 and height to 0.18.
Inside each group layout your WKInterfaceButtons
setting Relative to Container heights to 1 and width 0.25 (4 elements per row).
Final result on 38mm:
and 42mm: