> I think you underestimate the power consumption of streaming video compared to what a VR headset already does

Rayban stories have a 167mah battery[1] the quest2 has a 3640mah battery[2] even then, it only last 2 hours, more or less, rather than an entire day.

[1]https://beckystern.com/2023/04/30/ray-bans-stories-teardown/

[2]https://www.meta.com/gb/legal/quest/product-information-shee...