* Guiding someone through a complex assembly, it's going to be on pretty much all shift, with effects on thermal management and battery capacity.
* You'll want to swap batteries so that it can be used by another shift, which will take priority over fashion.
* It may also need to incorporate positioning markers and QR codes and external sensor data from a particular environment, sometimes taking preference over any general object recognition.
* Facial recognition won't figure very much.
* Ruggedness and repairability may be prioritized over miniaturization.
* Little to no tolerance for letting the vendor have footage or vague "telemetry" when trade secrets are involved.
In other words, it's like kind of like how the design/use/adoption of freight trains isn't necessarily indicative of the design/use/adoption of pickup trucks. Sure, they both move large things on wheels using diesel power, but...