Slot machines once towered over casino floors with screens 40 inches or more...

https://front-wiki.win/index.php/What_Is_the_Best_Way_to_Explain_Slot_Machine_Scale_to_Someone_New%3F

Slot machines once towered over casino floors with screens 40 inches or more wide. Now, they fit comfortably in your hand on phones with 6-inch displays