I thought of a way to solve this weight problem, if not the vertigo problem. Since there's already a detached battery pack, why not offload the memory, CPU, graphics processor, and the rest of the electronics, to the battery pack in the pocket?
I suspect that would be a bandwidth issue. It has 12 cameras likely streaming 4K HDR data at 90FPS+. Passing that down a USB-C cable all the time and then getting 2x 4K HDR 90 back would be problematic and very limiting if they ever use 8K. If they had R1 on the headset to compress/composite/process the feeds before putting them down to the box, that might work out but it's easier to keep the cameras, displays and processors in the same place. Those chips probably don't weight much. I'd say the cover glass and metal interior plus lenses will be the heaviest parts.
In their other product revisions like the iPad, they've gone over every part of the interior and tried to reduce weight, changing the layout and parts. They managed to reduce the iPad weight by about 1/3 in 3 years. They can likely do something similar here.
I thought of that. But by changing it to ThunderBolt 4 port/cable, the potential bandwidth increases to 40Gbps. That should take care of the bandwidth issue. Obviously, can't move those cameras out of the headset. I think you're right about Apple being able to cut the weight in subsequent releases. When I changed my eyeglasses from glass to polycarbonate, the weight difference was dramatic! And they really don't scratch any more than the old glass ones did.
4K HDR 90 is 3840 x 2160 x 30-bit x 90 = 22Gbps per stream. The following site has some details on the camera setup:
"The Apple Vision Pro packs 12 cameras in all: six external cameras (two forward facing, two downward and two side cameras), two TrueDepth cameras, and four internal infrared cameras, plus a LiDAR scanner. The external cameras track hand gestures and view what is happening around you, while the internal cameras perform eye-tracking, and what Apple calls Eyesight. It’s the two forward-facing cameras that can also capture spatial 3D photos and videos"
Thunderbolt 4 is close to the bandwidth needed for dual 4K for just the color data from the main cameras but there's no extra bandwidth for the other cameras at the same time. Thunderbolt 5 supposedly has up to 120Gbps, that would probably be enough.
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