I don't ever fully trust videos like this. There's too much incentive for this to be theater with adult handlers scripting it to bring in revenue. Not saying it's not just some kid making things and videos about it, but I'm suspicious.

Kid is very knowledgable, but went to way WAY too much trouble for this.

If the school said 'no phones' but would allow wearables, I would have bought one of those tiny full-function PCs (7" screen or something) and strapped that to my arm.