Keep your watch.Add your health.
One wrist.No compromise.
Most health trackers ask you to take off the watch you love, or to wear a second device next to it. Azume One does neither. It sits under the watch you already wear.
Hide. Reveal. Read.How Azume works.

Hide. Azume One goes under the watch you already wear. From the outside, nothing changes.

Reveal. A 2.8 mm sensor between your watch and your wrist, measuring day and night.
Read. The Azume app turns the data into clear insights about your sleep, your recovery and your stress.
2.8 mm.The whole picture.
Thin enough to disappear under a watch. Precise enough to follow your body around the clock.
Vitals
Heart rate and heart rate variability, day and night.
Sleep and recovery
Sleep stages and how well you recovered, every morning in the app.
Stress
Your stress level over the day, so you can see when you need a break.
Stress and steps
Steps, distance, calories and over 28 workout types automatically detected.
Same watch.New insight.
| Feature | Azume One | Smartwatch or fitness band |
|---|---|---|
| Keep the watch you love | Yes | No |
| Breaks your style | No | Yes |
| Visible on your wrist | No | Yes |
| Screen and notifications | None | Always on your wrist |
| Subscription required | No | Often |



