https://techcrunch.com/2021/10/14/htc-reveals-the-499-vive-flow-a-tiny-vr-headset-with-some-big-tradeoffs/

Today, HTC has revealed their latest consumer-focused headset, the $499 Vive Flow. It’s designed for portability with a compact design and 189 gram weight, though there are some big caveats which I’ll get to later.

I had the chance to demo the headset in-person in San Francisco and my first impression of the device was around just how compact and well-designed the hardware appeared. HTC is embracing several hardware features designed around miniaturization that we haven’t seen in other headsets. The “pancake” optics are thinner than what you’d see in any other commercially available headset, adjustable diopter lenses allow users to correct their vision in-headset and potentially avoid needing to use glasses with the Flow. The headset overall hosts a lightweight design more akin to the Magic Leap One than existing standalone headsets.