Anni(@anni_sen):I don’t think any wearable in market right now can accurately measure quality of sleep. So why would OURA ring have a valuation of $16B? Recently filed S-1 suggests they plan to raise $3B from IPO. $16B for selling a device that consumers trust to measure inaccurate data or a competitor figures how to make a more accurate device? This IPO makes little sense to me. Wearables can’t register those electrical signals. Instead, optical sensors track blood flow and micromovements. If you lie dead still and your pulse plummets, the algorithm might assume you’re in deep sleep, a reasonable deduction, but still a guess.

2026.09.06 19:40

I don’t think any wearable in market right now can accurately measure quality of sleep. So why would OURA ring have a valuation of $16B? Recently filed S-1 suggests they plan to raise $3B from IPO. $16B for selling a device that consumers trust to measure inaccurate data or a competitor figures how to make a more accurate device? This IPO makes little sense to me. Wearables can’t register those electrical signals. Instead, optical sensors track blood flow and micromovements. If you lie dead still and your pulse plummets, the algorithm might assume you’re in deep sleep, a reasonable deduction, but still a guess. - WSJ