Keep your watch.Add your health.
Azume One sits under the watch you already wear and measures what matters. Compatible with almost any watch.
No subscriptionPay once, every feature included.
Ships in 2026Pre-order now, with you this year.
Data in the EUStored in Ireland, no ad trackers in the app.
Built to disappear.Measuring all the same.
No display, no silicone strap, no second device on your wrist. Azume One hides behind your watch and records what matters.
Invisible
Azume One sits behind your watch. Nobody sees that you are tracking.
Fits almost any watch
Automatic, chronograph or vintage. Azume One attaches to almost any wristwatch.
One module, every watch
It holds by nano-suction, so it moves to whichever watch suits the day, from diver to dress watch.
Without a watch, too
Prefer no watch for sport or at night? Clip Azume One into the FitBand and keep the same data.
No distractions
No notifications, no lights. Your data lives in the app, not on your wrist.
The technology disappears.Your watch stays.
Activity.Every step, every workout.
Steps, calories and training sessions, recorded in the background and laid out clearly in the app. No screen on your wrist needed.
Explore activity
Stress.See what wears you down.
Spot patterns in your daily load and see when and why stress builds. The app marks sleep and workouts, so a run never reads as a bad day.
Explore stress
Sleep.Every night, in detail.
Sleep duration and stages across the night. Over weeks, the app shows how your habits change the way you sleep.
Explore sleep
Recovery.Ready for the day?
One score each morning, built from heart rate, HRV, VO2 max and blood oxygen and compared with your own baseline.
Explore recovery
Heart rate.Around the clock.
Resting heart rate is one of the clearest markers of recovery. Azume One records it continuously, quietly and without a display.
Within your usual range.
ACCESSORY
The FitBand.For days without a watch.
Our own band for Azume One, for the moments you leave your watch at home. Light, discreet and comfortable enough to forget.
Your watch can do more.More than you think.
Secure Azume One for €149.
Pre-order nowincl. VAT, plus shipping*
