Nreal Air is one. Others are launching too. Without the AR parts it is lighter. Works well as plain monitor without any support software. Only slight problem I have with this is it heats up a bit.
I've seen a few adverts for the Nreal Air, and it does look interesting. For $380 though I'd like to try them once before buying (and I don't trust the impartiality of any YouTube review people). Do you know if it's possible to try them anywhere?
They don’t even ship where I am. I had to go through postal proxy. If you write some questions I will try to answer them later plus my own comments about any caveats I have found. I think Android is the ideal pairing, using the special software as well. But I only want them as dumb monitor, possibly connected to a keyboard computer to try a new form factor.
I have them, they're great. It's like wearing glasses that are 1cm further from your face. It is not something that blocks your lower field of view, which hurts complete immersion.