With the release of the Apple Watch Ultra, Apple introduced something that captured the attention of divers and adventurers alike: a built-in dive computer. But what exactly does that mean? Can you use your Apple Watch as a reliable dive computer, or is it just a flashy feature?
This complete guide explores the Apple Watch dive computer capabilities—what models support it, how it compares to traditional dive computers, app support, depth limitations, and how it can be used safely underwater.
Can an Apple Watch Be Used as a Dive Computer?
Yes, Apple Watch Ultra can be used as a full-featured dive computer when paired with supported apps like Oceanic+, a third-party app developed in collaboration with Apple. Other Apple Watch models, however, do not function as proper dive computers.
Supported Models:
- ✅ Apple Watch Ultra
- ✅ Apple Watch Ultra 2
- ❌ Standard Apple Watch Series (1–9): Limited to basic water resistance and not suitable for diving
What Is a Dive Computer?
A dive computer is a device used by scuba divers to measure and display key dive information like:
- Current depth
- Time spent underwater
- Ascent rate
- Water temperature
- No-decompression limits
- Surface interval times
These metrics help ensure a safe dive by monitoring physiological risks like decompression sickness.
Apple Watch Ultra as a Dive Computer
Apple Watch Ultra is designed with EN13319 certification, a standard for dive computers and depth gauges.
Key Dive Features:
- Water resistance up to 100 meters (328 feet)
- Certified to 40 meters (131 feet) for recreational diving
- Depth gauge with water temperature sensor
- Dedicated Depth app for free diving and snorkeling
- Oceanic+ app for scuba diving (subscription required)
- Rugged titanium case with flat sapphire crystal display
- Customizable Action Button for dive mode activation
Apple Watch Models and Dive Capability
| Model | Max Depth Rating | Dive Computer Functionality | Recommended For |
| Apple Watch Ultra 2 | 40m (recreational) | Yes (with Oceanic+ app) | Scuba divers, freedivers |
| Apple Watch Ultra | 40m | Yes | Snorkeling, recreational dives |
| Apple Watch Series 9 | 50m (WR50) | No (swim/shower only) | Pool swimming |
| Apple Watch SE | 50m | No | Light water exposure |
Oceanic+ App: Turning Apple Watch into a Dive Computer
The Oceanic+ app is what truly unlocks dive computer functionality.
Features:
- Plan dives with local dive conditions
- Track no-decompression limits (NDL)
- Monitor water temp, depth, ascent rates
- Receive safety warnings (vibrations + visuals)
- Automatic dive logging
- Surface interval tracking
Subscription Plans:
- Free version includes Depth mode (basic)
- Premium subscription: $9.99/month or $79.99/year
- Family sharing available
You’ll also need the Oceanic+ iPhone app to view and organize dive logs, sync GPS locations, and download environmental data.
How to Use Apple Watch as a Dive Computer
Install Oceanic+ on Apple Watch and iPhone
Download the app from the App Store on both devices and sign in.
Plan Your Dive
Use the iPhone app to input dive site, surface conditions, gear settings, and safety factors.
Activate Dive Mode
Tap the Action Button on Apple Watch Ultra when ready to dive. This launches Oceanic+ with real-time metrics.
Monitor Key Dive Info Underwater
See depth, time, ascent rate, and temperature. Haptic feedback will alert you if you’re ascending too fast.
Sync and Review
After your dive, logs will auto-sync to the iPhone app with detailed analysis.
Is It Safe to Dive with Apple Watch Ultra?
Yes, for recreational diving up to 40 meters, the Apple Watch Ultra is safe and certified. However, it’s not designed for technical or saturation diving. Avoid:
- Deep dives beyond 40 meters
- Use in hyperbaric chambers
- Harsh environments requiring helium protection
Tips for Safe Use:
- Ensure your watch is updated to the latest firmware
- Calibrate the depth gauge before diving
- Use a protective band like Ocean Band or Alpine Loop
- Don’t push the depth limits—respect the 40m certification
Apple Watch vs Traditional Dive Computers
Pros of Apple Watch Ultra:
- Multifunctional (fitness, health, smart features)
- Intuitive display and touchscreen
- Real-time safety alerts
- Automatic dive logging
- Dual-use device (daily + dive watch)
Limitations:
- Requires subscription for full dive data
- Not compatible with external sensors like air integration
- Battery life limited to ~12 hours in Dive Mode
- Not suitable for deep or commercial diving
Apple Watch Ultra vs Traditional Dive Computer
| Feature | Apple Watch Ultra | Dive Computer (e.g. Suunto, Shearwater) |
| Max Depth | 40m | 100m+ |
| Battery Life | ~12 hours in dive mode | 30–50 hours |
| Custom Air Integration | No | Yes |
| Multi-Gas Support | No | Yes |
| Smartwatch Features | Yes | No |
Can I Use Apple Watch for Freediving?
Yes, the Depth app built into the Apple Watch Ultra works perfectly for:
- Freediving
- Snorkeling
- Shallow dives up to 40m
It shows real-time depth and water temperature but does not offer decompression data.
What About Scuba Diving?
The Apple Watch Ultra is reliable for recreational scuba diving, especially when paired with the Oceanic+ app. It provides all the essentials a casual diver would need—though not a replacement for high-end, technical dive computers.
FAQs
Is Apple Watch waterproof for diving?
Apple Watch Ultra is water-resistant up to 100m and dive-rated to 40m. Other Apple Watch models are not suitable for diving.
Does Apple Watch track dive logs?
Yes, with the Oceanic+ app, your dives are automatically logged and synced to your iPhone.
Can I use the Apple Watch as a backup dive computer?
Yes, many divers use it as a secondary reference in addition to a traditional dive computer.
What is the depth limit for Apple Watch Ultra?
It’s certified up to 40 meters (131 feet) for diving activities.
Do I need a subscription to use Apple Watch as a dive computer?
For full dive functionality, yes. The Oceanic+ app requires a paid subscription to access full decompression and dive planning tools.