I cannot tackle every existing or existed device, sorry. You cannot find here products aimed at enterprises and professionals, like the StarVROne, the Varjo VR-3 or the XTAL. For historical reasons, let me mention on the fly the first pioneering headset implementing eye tracking and foveated rendering, the FOVE 0, by Japanese company Fove. Initially welcomed by a successful international kickstarter campaign in... Source: about 3 years ago

I just saw Walnut.io [1] demo for another product today. I skipped through most of the demo, did not really understand anything about the product. I think it is not the tool but really depends on who and how these product tours are built. I can imagine some products are complex and needs explanation or hand holding by solution engineers, account managers etc. No product ever is so amazing that you don't need help... - Source: Hacker News / 11 months ago

I've found some interesting interactive demo tools like walnut.io or demoboost.com, but none of the ones I have found so far are very transparent about pricing. Source: 12 months ago