Oceans

Oceans S1 Supersonic

A wrist computer with built-in ultrasonic buddy communication. Tap to send a preset message underwater.

Open BLE sync (libdivecomputer)

Syncs wirelessly with third-party apps (Subsurface, Currents, etc.), not just the manufacturer app.

Oceans S1 Supersonic
$566
Released—
Max depth rating50m
AlgorithmBühlmann ZHL-16C with gradient factors
Air integration—
Wirelessbluetooth
Display2.2in color LED
Batteryrechargeable
Digital compass—
Gas typesair, nitrox
Gas switches—
CCR capable—
Pros
  • Ultrasonic "ping" messaging to a buddy, instructor, or divemaster up to 15-20m away, no hand signals needed
  • Haptic vibration feedback for silent alerts
  • All-wireless design, charges on any Qi charging pad
Cons
  • Recommended max depth of just 50m limits it to recreational diving
  • Small Swedish startup (originated as a Kickstarter), thinner service/support network than established brands
  • Ultrasonic buddy messaging only works between two S1/S2 units, no benefit diving alongside another brand's computer

The Oceans S1 Supersonic is built around a novelty most dive computers don’t have: built-in ultrasonic communication that lets divers “ping” a buddy or instructor underwater without hand signals. It launched via Kickstarter and went on to ship at retail, and Oceans has since followed it with a second-generation S2. It’s still a niche product from a small Swedish outfit rather than an established dive-computer brand, so parts and service depend on the company’s continued operation.