A phone, watch, or ring with vibration isn't sufficient?

Particularly for exercise, a pair of glasses feels like too much, until baked in to prescription frames with no added weight

Those are all pretty small screens. You can get the Xreal with prescription if you want.

"ring with vibration"

I don't want to learn morse code to know what price my ring has found for me. Glasses displaying a price, please.

What prices are you tracking?

I have pretty bad phone hygiene, but I honestly can’t imagine being so switched on and plugged in that I couldn’t walk around the house without thinking that I missed the price of something.

>> Various system health graphs, alerts. Prices of things. You can shrink the virtual screen so that it only takes up a corner.

So you want a HUD like in Oblivion or Skyrim? On you head? Telling you how healthy you are and when you need to eat?