Casio has released a ring in the form of its iconic watch

Six digit, not six segment. Each digit has seven segments.

I've seen this a LOT lately, when did everyone forget what segments were?

Young people may not have ever seen a display like that.

They most likely see displays like that on microwaves.

In grandma’s kitchen.

Did air fryers already displace microwaves? I've missed the last couple meetings

Microwaves are great a two things (and little else...): warm up liquids and make popcorn. Neither are properly done by an air fryer.

I have both tools and they have completely different uses.

edit: both sport 7-segment digits though

I think maybe the original killer app for microwaves was baked potatoes? An hour to cook in a conventional oven. 5 minutes in a microwave. But maybe no one eats those anymore?

I haven't tried that, but my guess would be the same problem as most solids in a microwave - uneven heating / cold spots. That's why liquids and popcorn work so well, liquids mix themselves up and the unpopped kernels fall to the bottom of the bag.