But I can tell you for sure Apple surely doesn't want a fan in these units! 😅 Steve Jobs would haunt them for doing such a thing.
Errr, current ones with lower TDP processors do now. Quest 2 teardown
The Oculus Quest 2, also known as the Meta Quest 2, is a VR headset developed by Facebook (formerly Oculus) and is the 2nd iteration of the...
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Apple may not want folks to notice the fan working , but if they really are sticking
two SoCs in the device then they probably will need some sort of fan (active cooling).
So thermal issues seem about right and this is perhaps believable. But you would think before thermal issues arise you'd have battery life issues since you are heating a chip up that much anyway. Headsets would have a small battery I'd imagine, not a lot of room to play with.
You also have thermal issues because the human these are attached to is also putting heat into the system. Not like it is just the narrow pads of the finger tips touching the system. This thing will "wrap up" a substantive part of someone's head.
Will want the heat the system generates to deliberately move away from the person ( where have blocked the normal airflow that moves around a person's head. )
A "belt clipped" battery pack would mean wires ( and Apple 'hates' wires about as much as fan noise ), but it would dramatically drop the weight strapped to the head. ( Hence some of the other commentary about "how can it not have a top strap. Much lower need for a top strap if the thing weights substantially less.). The rumored supposed 90W power input would make more sense if it had common usage. (besides faster battery recharging. )
[ this is similar to moving the "power brick" out of the laptop/iPad/newer iMac 24". Although that is more reduction in volume more so that shifting of weight. Although would drop volume on the headset also. ]
If Apple is picking two 4K displays to drive then has to be some "oomph" horsepower behind that to render complex 3D images at high frame rates. Apple could substantive lower the SoC thermal demands if dropped back to two 2K displays. But if engaged in a contest of "higher that almost everyone else" screen resolutions then they likely have a problem. ( even leaning on fancy upscaling algorithms .. there are two screens to drive which should have slightly shifted images.. )
Also if you thought battery swells were worrisome in a laptop, how about a headset!?
Again, basically a non issue with a waist battery pack.