I'm working on the so-called "smart home" and have been testing out several devices. I found I like the Sonoff "NS Pannel". It is exactly the size of a standard wall switch with an LCD panel the size of a smaller iPhone and two physical buttons. It also has a relay to control an AC circuit. It connects via WiFi. The device is installed inside an electrical box and replaces a normal switch and is AC powered (no battery)
I can set up any number of screens that you get to by left or right swipe but common operations are done with the two physical buttons For example the right button is "Turn off all lights and fans in master bedroom, master bath and closets, then connect motion sensor is nite-light."
THIS is the problem for Apple, smart home devices need to be PROGRAMMED for each house. I happen to have two fans, three lights, and a ceiling heater in my bath. I want to be able to turn them all off from a switch that is in another room. What is the chance of anyone else needing exactly this same function? Everyone will have their own unique requirements. But 99.9% of Apple's target customers would not be able to set up any kind of custom automation. And even fewer would be able to work with AC mains wiring and tie the AC power to the automation.
I use the avoce pannels with those software
https://www.home-assistant.io/ along with Apples Siri so I can tell Siri ti "set nighttime" rather then touching the roiight button or swiping into the menu system
Here is the device link:
https://www.amazon.com/SONOFF-2-Switch-Touchscreen-Temperature-Assistant/dp/B09MRZQCN2?th=1
OK, long story but my point is that "small phone size" is about right for this and I want it INSIDE the wall. not on a table. and "about $70" is the right price. Also, I absolutely do not want cords of any kind, nor do I ever want to replace a battery, So wall-mounted and connected directly to AC mains is best. Just like a conventional light switch.
I don't think Apple will ever be able to sell anything like this. They will be stuck selling what I call an "iPad on a stick"