Safety
Instrument, not a computer.
DiveOne is a secondary depth and time recorder. It is not a dive computer and does not replace your primary instrument.
DiveOne is not a dive computer or life-support device. It does not calculate decompression. Always dive within your training limits and use a primary dive computer.
What we promise
- Reliable depth and time logging with 1s resolution.
- Clear, visible status indicators during your dive.
- Haptic alerts for critical depth and duration thresholds.
- Automatic data syncing between watch and phone.
What we don't promise
- Decompression calculation or planning.
- Gas management or air integration.
- Blackout detection or emergency rescue features.
- Perfect GPS accuracy (GPS does not work underwater).
What happens if
Battery dies
Watch powers off. Surface safely using your primary computer.
App crashes
Data up to the crash point is saved. Resume session if possible.
Sync fails
Data remains on watch until next successful sync.
New phone
Restore from iCloud/Apple Health to recover your dive history.
Safety recommendations
1
Always dive with a primary dive computer.
2
Start every dive day with at least 80% battery.
3
Review your dive logs on land, never during a dive.
4
Keep your software updated for the latest safety optimizations.
DiveOne 1.0.1 is available.
Download the current App Store release and check the status page for verified limits.