I don't think you'll ever be able to. Maybe not for decades for AR/VR. The AI stuff is cool; you can offload that, but mostly they'll just be a glorified camera mount and headphones for the actual 'glasses.'
Intels next gen iGPU has has similar benchmarks to a 3080. Compute is still scaling incredibly quickly. I think the optical problem will end up taking much longer than compute.
(phones are an obvious choice but I suspect you could jam significantly more power into the same form factor if you didn't need screen, speakers, mobile modem etc)