Depending on the game, you can expect to burn between 5 and 11 calories per minute using the on-headset tracking, at one point I was consistently burning 1k calories per day at a healthy weight. Both hands and your head are tracked, allowing games to detect leaning or squatting out the way of attacks, as well as physically moving around the play space. Many experiences involve swinging swords or fists, which is also cardio.
The common example is Thrill of the Fight; it's a (shadow)boxing simulator. Users have reported over 3k calories burned from this in a day[0][1]. It's intense exercise, and you quickly build a heavy sweat.
TL;DR: It's much more intense than I'd imagined. Imagine playing badminton, but in a smaller area.
Cycling on an indoor bike at enough effort to burn 600 calories an hour will leave me covered in sweat that makes wearing glasses hard. How comfortable is the Occulus headset when sweaty? does it stay on with violent movements you might do in shadow boxing?
I also sweat a lot. To wear an Oculus headset and most VR headsets comfortably, it’s enough to just have a silicon cover. There are also plenty of accessories and mods to counter sweat.
It stays in place and is comfortable with the 'elite strap' accessory, can't say for the default one it ships with. IMO it should be standard. Brow sweat is a problem, but new units all ship with foam + silicone rather than just foam padding so at least it's cleanable.
There is also an actively ventilated face pad from "BoboVR" that I've found to help a lot with the eyepieces fogging up, which they otherwise will do, especially with the snap-in prescription lenses from FramesDirect. (Those need ventilation holes too, though; they'll fog up in the space between the prescription lens and the stock one. I haven't taken a pin vise to mine yet, but intend soon to, as that's the only place I still have fogging problems with the fan running.)
The Quest 2 stock strap sucks. You really need an "elite strap" or something like it. For Beat Saber or anything even vaguely like it, you also want knuckle straps for the controllers, so you don't have to worry about holding on to them or about failing to hold on to them.
The stock strap doesn't feel secure to me, even with headphones over it - I get shy about moving my head for fear I'll lose the headset. The "elite strap"'s knob-tightening mechanism holds everything much more firmly in place.
The common example is Thrill of the Fight; it's a (shadow)boxing simulator. Users have reported over 3k calories burned from this in a day[0][1]. It's intense exercise, and you quickly build a heavy sweat.
TL;DR: It's much more intense than I'd imagined. Imagine playing badminton, but in a smaller area.
[0] https://www.reddit.com/r/ThrillOfTheFight/comments/rjrcze/hi...
[1] https://vrhealth.institute/portfolio/thrill-of-the-fight/