Opening the door wastes energy. And it seems, mindlessly going to the fridge to see what's inside even though you know exactly whats inside, is a thing many people are doing. So there is an argument to be made, that a camera in the fridge is a useful feature. I'm happy without it.
If the budget for the cameras, screens and apps would be spend on extra isolation, the fridge would overall be more ecological. But hey. I understand. Gadgets sell more than quality.
If you want a fridge that’s really efficient, you can’t beat a chest/bunker freezer with a thermostat. Refrigerators lose all their efficiency from the vertically mounted doors which allow all the cold air to fall out instantly when you open the door. A chest freezer door is mounted horizontally so the cold air stays trapped inside, even when you open the door. This makes all the difference in the world!
I don't have the ability to experimentally verify, but I would think so? A window is going to be there 24/7 and air doesn't actually have that high of a specific heat, so you'd really have to be constantly opening the door for it to come out in favor in my understanding.
