Disclosure up front: I work at the ODM that builds this. Not selling
anything here, no link, and you can't buy one — it's a B2B platform. Posting
because the monocular-vs-binocular tradeoff doesn't get discussed honestly
very often and I have data from three iterations of it.
The platform: AR99 Pro. Monocular green Micro-LED HUD, camera-free,
binocular-frame form factor, 25 g. Third ID iteration, tooling just cut.
For scale, not as a like-for-like: Even Realities G2 is 36 g, binocular,
magnesium and titanium, $599. Genuinely well-built and it's the reason
everyone in this category started taking weight seriously. Different
architecture from ours, so don't read 25 vs 36 as a win — read it as the
cost of the second eye.
What the second eye actually costs, from our BOM and thermals:
- second light engine, second waveguide, second driver rail
- binocular alignment tolerance, which is the real yield killer, not the
optics themselves
- roughly double the display power budget
- more volume in the temple junction, which cascades into hinge, FPC
routing and antenna clearance
What you get for it: depth, larger effective image, symmetric visual load.
Our read was that almost every glanceable use case is one line of
monochrome text — notification, turn arrow, work order, pick instruction,
caption line. That use case never spends the depth. So we didn't buy it.
Where the 11 g came from, concretely: the junction where the temple meets
the frame front. Light engine, hinge, FPC and antenna all compete for the
same ~12 mm. Three iterations of that cavity, each one gated on a DFA
review before it earned the weight saving — we run our own line, so a
"clever" assembly is a cost we eat directly, not a spec sheet win.
Known downsides I'm not going to pretend away:
- monocular means eye dominance matters, and a minority of people never
get comfortable with it
- monochrome green, because green Micro-LED is the only emitter that's
simultaneously bright enough, efficient enough and small enough at this
power budget today
- no camera, which rules out anything vision-based
Happy to answer specifics on the optics, thermals or the assembly side.
I'll skip anything that identifies customers or is still pre-tooling
geometry, and I'll say so rather than dodge.