Do you remember when digital photo devices were all the rage?
You would load your pics onto them and they'd act like a framed photo that kept changing.. You don't see those any more.. and I wonder what happened to them.. why didn't they work out>?
In fact, one friend has a unit that connects to the internet - and their scattered family can upload photos of the grandkids and great-grandkids, from anywhere in the world.
I've got one out in my shed. My sister had given it to my mom for christmas when they first came out. However, mom didn't like it. She prefered seeing all her progeny at the same time. Plus she liked to keep their earlier photos behind the most recent one in the frame (who knows why). So she conveniently "misplaced" the device.
People are buying TV aps now. When the TV is "off" it runs your favourite sequence of photos or filmic wall-paper. It could be your last holiday snaps, your kids in all phases of growing up, or a film of goldfish looping around in a tank, or anything you choose, ad infinatum, to replace the black screen.
I still prefer a digital camera and a range of lenses depending on the distance of the subject. Snapshots from a phone are okay for practical purposes, but the lenses tend to create all kinds of distortion of proportions, and there's no way of controlling focal length or aperture.