A titanium smart ring that reads your sleep, recovery, and daily readiness on a charge that lasts the week. No subscription, ever.
The reasoning is simple. The wrist is busy. A ring is a single body part, in continuous contact with skin, in the same position every night. Pulse oximetry, temperature, motion: all of them are quieter, steadier, more honest a few centimeters down the arm.
What you wear is a Grade-5 titanium shell, 3.4 grams, with a recessed sensor window and a smooth inner curve. You forget you have it on. That is the entire design brief.
Stages, resting heart rate, overnight temperature, breath rate. Every night the ring collects them and resolves the noise into one quiet readiness number, on the lock screen before coffee.
You will not be shown a 47-bar chart. There is one number. If you want the chart, it is one tap deeper. The default is the part you can act on.
Heart rate variability is the clearest signal a body offers about whether it has recovered. Resting heart rate is the second clearest. The ring measures both, every night, in the same conditions, on the same finger.
What you see on the days that matter is one sentence in plain language: today is a day to push, today is a day to hold. The math is in the app if you want it. The instruction is on your phone if you do not.
Overnight skin temperature is a leading indicator. The body warms before you feel feverish, before the period begins, after a long flight, after a hard day. The ring records 0.05 °C resolution and the app shows where you are against your own fourteen-night baseline.
The pattern is the point. We do not diagnose. We surface a number you can carry into the conversation you would have had anyway.
A seamless titanium shell with a recessed sensor window and a smooth inner curve. Built to disappear on the hand and survive everything a day throws at it.
A small founding batch opens at launch. Join the list to get early access, founding pricing, and a sizing kit shipped before the ring does.
We're targeting a 2026 release. Waitlist members hear first, with a window to order at founding pricing before general availability.
Final pricing is being confirmed. What is final: no subscription is ever required to see your data. Waitlist members receive a founding-member discount at launch.
Every order includes a free sizing kit. You wear the sample rings for a day or two, confirm your fit, and only then do we ship your ring.
The Handspring app will support recent iOS and Android devices at launch. Data syncs over Bluetooth and stays on your account.
No. The waitlist is free, with no obligation. It puts you in line for early access and updates; you decide later.
Your readings live on the ring and on your phone. They sync to our servers for backup and for the readiness model. Nothing about your health data is sold or shared. Details are in the privacy notice.