Slot machines used to be these massive cabinets over 40 inches tall, dominating...

https://lorenzosnewblogs.nexorafield.com/posts/why-do-slot-machines-take-up-so-much-floor-space

Slot machines used to be these massive cabinets over 40 inches tall, dominating casino floors with their flashy lights and sounds. Now, they're fitting comfortably on phone screens just 6 to 7 inches wide