Ultrahuman
The smart ring without the subscription.
What they're known for
The Ring Air — sleep, HRV, and temperature tracking with no monthly fee, which is the entire argument.
Ultrahuman's Ring Air does what the category leader does — sleep staging, HRV, temperature, recovery scoring, in a featherweight titanium ring — with one structural difference: no subscription. You buy the ring, you get the data. In a category that normalized monthly fees for your own biometrics, that's not a feature, it's a position.
The platform is more aggressive than most about adding capability — circadian-timed stimulant warnings, glucose integration with a paired CGM, a stream of experimental "PowerPlugs" — which suits self-experimenters who want their tracker to do more each quarter. The value-and-velocity alternative in smart rings.
Notable products
We haven't catalogued their full line in the directory yet. These are the entries worth knowing.
- Catalog entry
Ring Air
Titanium smart ring — sleep, HRV, and temperature with no subscription
- Catalog entry
Ultrahuman M1
CGM-based metabolic tracking that pairs with the ring
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