Guide

Apple Watch as a Dive Computer

The Apple Watch Ultra is depth rated to 40 meters, ships with a real depth gauge, and with the right app becomes a genuine recreational dive computer. Here is what it can and cannot do in 2026, and how to keep every dive it records in a logbook you own.

What the hardware can do

Apple Watch Ultra and Ultra 2 carry a WR100 rating, a dedicated depth sensor and Apple's Oceanic+ partnership. Out of the box, the built-in Depth app records depth and water temperature for any underwater session down to 40 meters. Those sessions land in Apple Health as underwater depth data, which is exactly where a good logbook can pick them up.

Oceanic+: the Watch as a full dive computer

The Oceanic+ app adds decompression tracking, no-fly time, haptic safety stop alerts and a dive log, effectively turning the Ultra into a recreational dive computer. Divers love the screen readability and the haptics you can feel through a 7mm suit. The common frustrations, from thousands of App Store reviews: the subscription pricing, the hard 40 meter ceiling, and dive data that stays locked inside the app. Serious divers usually run it alongside a dedicated computer. If you are choosing one, see our guide to the best dive computers.

The part everyone forgets: where do the dives go?

A dive computer on your wrist is only half the story. The other half is the logbook: the permanent, searchable record of every dive, with sites, buddies, marine life and photos. This is where the Watch ecosystem falls short on its own, and where SeaLog picks up:

One-tap import from Apple Health: every dive your Watch recorded, with the depth profile, lands in your SeaLog logbook automatically. No retyping.
Works with the rest of your gear too: Bluetooth download from Shearwater, Suunto, Mares and Scubapro, plus UDDF, CSV and FIT file import. One logbook for every computer you will ever own.
Offline first: the full logbook works on the boat with no signal, then syncs.
Yours forever: export everything as UDDF, CSV or PDF whenever you want.

Apple Watch vs a dedicated dive computer

Honest answer: for recreational no-deco diving above 40 meters of depth, the Ultra with Oceanic+ is a real option that thousands of divers use happily. For technical diving, gas switching, or anything below 40 meters, a dedicated computer from Shearwater, Garmin or Suunto remains the tool of choice. Many divers wear both: the dedicated computer runs the dive, the Watch feeds the logbook. SeaLog is built for exactly that setup, whichever side of it you start from.

Frequently asked

Does the standard Apple Watch work for diving?

Non-Ultra models are not depth rated for scuba. Snorkeling and shallow freediving sessions can still be recorded, and SeaLog imports those from Apple Health as well.

Can I get my old Oceanic+ dives into SeaLog?

Yes. Dives recorded with Oceanic+ are written to Apple Health, and SeaLog imports them from there with the full depth profile.