Like a pin. With AI. And it would talk to you like a human, so we could call it the Humane AI Pin.
How did nobody thought about that?
1. It would be easier to use than a pin because it's connected to your hand. You can press it without anyone knowing that you are pressing it. You can presse it with a single hand in a comfortable motion. It doesn't fall around or look weird on your body. It also just be a ring because it only needs to connect over short-range to your phone.
2. Earbuds give you privacy, volume control, good mic quality, better battery life. Also again they are slightly more subtle than a large pin.
3. You don't make these stand alone hardware. You just have them talk to your phone and have it handle networking, camera, compute as needed.
Not at all comparable to humane AI pin...
I feel like the most natural thing would be basically push-to-talk-to-AI:
1. Some sort of mic + earpiece that you can wear comfortably(e.g. airpods)
2. A wireless button that you can put on a ring to activate the mic in the most ergonomic way possible
3. Any time you press the button, everything you say gets sent to a running AI chat