Slot machines used to be massive, some standing over 40 inches tall or spanning...

https://wiki-burner.win/index.php/What_Does_a_6_to_7_Inch_Phone_Screen_Actually_Mean%3F

Slot machines used to be massive, some standing over 40 inches tall or spanning up to 50 feet on a casino floor. Now, these games fit neatly on screens as small as 6 inches, right in your pocket