After diving, residual nitrogen remains in the body. To avoid decompression sickness caused by pressure differences:
- Wait until the No-Fly Time has ended before boarding a plane.
- Avoid traveling to altitudes above 300 meters (1,000 feet) during this period.
No Fly Time

Scuba Diving: A 24-hour countdown will start after a dive.
Free Diving (Depth ≥ 40 meters): A 12-hour countdown will activate.
Once the countdown is finished. The icon will disappear.

Surface Time (Surface Interval)

Viewing Last Dive and Surface Interval
- Access Last Dive Details:
Time Mode: Press the D button > Menu > Widgets > Enable Last Dive.
- Switch Between Widgets:
Time Mode: press the A or C button to toggle through widgets.
In the Last Dive widget, you can view your surface interval time.