Slot machines used to fill casino floors with cabinets over 40 inches tall,...

https://www.bust-bookmark.win/from-massive-40-inch-cabinets-to-pocket-sized-6-inch-phone-screens-slot

Slot machines used to fill casino floors with cabinets over 40 inches tall, making a real statement in size and presence. Today, many of those same games fit comfortably on phone screens about 6 inches across