Why not have a battery externally, attached with a long cable?

The Vision Pro battery is already external, isn't it? But the device is heavy anyway, I think because of the used materials like glass.

Maybe they should add a helium balloon. Like this guy did with his bag:

https://www.youtube.com/shorts/fvfvUzy64sw

Not sure how convenient it is when working in an airplane, though. Maybe airplanes could be fitted with elastic straps that pull your VR device up?

Balance presumably.

If __they__ can do it:

https://www.istockphoto.com/nl/foto/indian-little-girls-carr...

It's not a matter of "can" you do it, it's a matter of needing to do it. Do you make a habit of carrying a gallon of water on your head? You probably don't need to. I don't need to either. I certainly don't need to spend $3500 for the privilege of carrying a gallon of water on my head. Doing so is not necessary or beneficial to my life in any way. I could do it if my life depended on it, but it doesn't.