> No charging: The battery lasts for up to years of average use. After the end of its life, send your ring back to us for recycling.

That's a pretty long life, TBF. I appreciate your concerns, though, and do wonder if there was a better middle ground (maybe a micro sterling engine leveraging the heat gradient from my finger to ambient, ha!).

People are buying Fitbit charge6 products today and those probably have an 18 shelf life and cost more.. so maybe it's not totally left field - although the charge6 isn't advertised to fail so soon lol.

That lifespan is based on the user recording for 12 to 15 hours over those two years. It's a $100 device that can record 12 hours of audio and then you throw it away. You could expend the battery on your first day by holding down the button.

Honestly I can see a niche use but this device strikes me as quite weird and I'm not sure why it isn't a button on their new watch.