Supported devices
DiveOne requires Apple Watch Ultra or Ultra 2 — the only Apple Watch models with a built-in depth gauge.
Device compatibility
| Device | Depth gauge | Temp sensor | DiveOne |
|---|---|---|---|
| Apple Watch Ultra 2 | ✓ | ✓ | Supported |
| Apple Watch Ultra | ✓ | ✓ | Supported |
| Apple Watch Series 9/10 | — | — | Not supported |
| Apple Watch SE | — | — | Not supported |
DiveOne requires the depth gauge hardware available only in Apple Watch Ultra models.
System requirements
Watch
Apple Watch Ultra or Ultra 2
iPhone
iPhone with iOS 17 or later
watchOS
watchOS 10 or later
iOS
iOS 17 or later
Battery expectations
No guarantees — but here's what to expect and how to prepare.
A typical 60-minute scuba dive uses approximately 10–15% of Apple Watch Ultra battery. This varies based on screen brightness, haptic alerts frequency, and ambient temperature.
Before your dive
- Start with at least 30% battery. We recommend 50%+ for multi-dive days.
- Disable Always-On Display during dives to conserve battery.
- Turn off WiFi and cellular before entering the water.
- Close other apps on the Watch to reduce background activity.
- Charge fully the night before a dive trip.
If battery drops below 10% during a dive, DiveOne will attempt to save all recorded data before the Watch enters Low Power Mode. Data recorded up to that point is preserved.
Why Apple Watch Ultra only?
DiveOne uses the depth gauge and water temperature sensor that are exclusive to the Apple Watch Ultra lineup. These hardware sensors are required for accurate underwater depth and temperature tracking. Other Apple Watch models do not include this hardware and cannot support dive tracking features.
If your device is not supported
DiveOne requires Apple Watch Ultra hardware. If you have a different Apple Watch model: