I don't know the answer to your question specifically, but in general, if someone tells you the resolution in terms of 'X by Y' pixels, that is unuseful information for an AR display. It drives me bananas that this isn't industry standard after all these years.
Instead, you need resolution in terms of Pixels Per Degree (PPD). And, to have any hope of viewing legible text on a virtual monitor projected via an AR HUD, like you can on a physical laptop monitor, you need at least 35PPD.
I didn’t have the vocabulary to see it this way, nor the 35 PPD standard. My experience with headwear is from circa 2016 VR headsets that were running a racing sim, with awful screen door effects.
I realize there’s been a decade of progress. However, seeing random no-name AR glasses and being encouraged to buy them “sight-unseen” by a native content article seems like a recipe for being bamboozled.
> Can you see the small text of individual items of the Word ribbon?
I tried with my Xreal Air on Windows and macOS, and yes, it's quite legible.
Do bear in mind that although the screen is quite close to your eyes, the optics makes the apparent distance quite far. So if you're short-sighted, you will need prescription inserts. I also have some issues with some corners of the screen being slightly cut off, probably a combination of the inserts which I ordered locally as well as the fixed IPD of the older Xreal glasses (the newer Xreal One should be better here with its software IPD adjustment, the Xreal One Pro also comes in two different sizes for different IPD ranges). I also noticed some of the text on the right side of the Word ribbon was a bit blurry, which might be due to the inserts. But in general, I find the display quality great for video, and perfectly good for web browsing (not as good as a Hi-DPI display, but perfectly usable).
The Xreal glasses are 1920×1080. The Air series is listed as 49 PPD, the One and One Pro will be a bit less due to the larger FOV (50° for the One and 57° for the One Pro as opposed to 46° for the Air series).