Wear less.
Sense more.
HALO Loop is a titanium smart ring that quietly tracks your sleep, recovery, and focus — no screen, no noise, just precision on your finger.
Three signals. One quiet ring.
HALO Loop distills sleep, recovery, and focus into insights you actually act on — measured continuously, delivered simply.
Sleep Intelligence
Tracks sleep stages, temperature shifts, and restlessness to surface a nightly Sleep Score with real context, not just hours slept.
Recovery Score
Heart rate variability and resting pulse combine into a daily readiness number — know when to push and when to rest.
Focus Windows
Personalized daily windows based on your physiology tell you exactly when your mind is primed for deep work.
From unboxing to insight, in four steps.
No apps to babysit, no cables to hunt for. HALO Loop works quietly in the background of your life.
Slip it on
One adjustable titanium band, sized to your finger in seconds — no charging cradle required on day one.
Live your day
HALO Loop senses temperature, motion, and pulse continuously and silently, with zero screen to check.
Wake to insights
Each morning, see your Sleep Score, Recovery Score, and a personalized Focus Window for the day ahead.
Improve, daily
Gentle, data-backed nudges help you build recovery-first habits — without noise or guilt-driven notifications.
Built from the same titanium used in aerospace.
- Material
- Grade 5 Titanium shell, hypoallergenic inner coating
- Sensors
- PPG heart sensor, SpO2, skin temperature, 3D accelerometer
- Battery
- Up to 7 days per charge
- Charging
- Contactless charging case, ~2 hrs full charge
- Water Resistance
- 10 ATM (100m)
- Sizes
- US 6 – 13, half sizes included
- Weight
- ~4g average
Early access, priced for early believers.
Reserve your spot now with no payment required — pricing locks in the moment we open checkout.
- Titanium HALO Loop ring
- Sleep, Recovery & Focus tracking
- Standard shipping timeline
- Everything in Retail
- Priority shipping, first batch
- Locked-in founding member price
Common questions
Founding members from the waitlist will receive priority shipping as soon as production of the first batch is complete. Exact dates will be shared directly with waitlist members.
No. HALO Loop lasts up to 7 days on a single charge, so you can wear it continuously through sleep, workouts, and daily life without interruption.
Yes — HALO Loop is rated to 10 ATM (100m), so it's safe for showering, swimming, and everyday water exposure.
HALO Loop ships in US sizes 6 through 13, including half sizes, with a free sizing kit sent before your order ships.
No. Your Sleep, Recovery, and Focus insights are included with your ring — no recurring subscription is required to access core features.
Be first to wear the future.
Join the HALO Loop waitlist for founding member pricing, priority shipping, and early updates as we approach launch. No payment required to join.