Garmin Descent S1 Buoy

Garmin Descent S1 Buoy

$4,999.00
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Garmin Descent S1 Buoy

Garmin Descent S1 Buoy

A surface smart buoy that links compatible Garmin dive gear to topside monitoring and preset messaging through the Garmin Dive app.

$4,999.00

The Dive360 Take

The Descent S1 Buoy brings the surface crew into a compatible Garmin dive network. Using SubWave sonar and the Garmin Dive app, it lets those topside monitor connected divers and exchange supported preset messages while the dive is underway.

It is worth considering for organised dive groups, instructors and boat crews who want more information than a collection of bubbles can provide. Connected divers can also see distance and direction back to the buoy, with a heatmap available to review after the dive.

The S1 is part of a system: compatible Garmin air-integrated dive computers, paired Descent T2 transceivers and a suitable surface smart device are required. It supplements normal dive supervision and communication procedures; range depends on conditions and a clear sonar path.

The serious stuff
  • Garmin Descent S1 Buoy; existing model 010-02546-00.
  • Supports a network of up to eight divers using compatible Garmin equipment.
  • Requires compatible Garmin air-integrated dive computers and paired Descent T2 transceivers; these are sold separately.
  • Surface monitoring and messaging use the Garmin Dive app on a compatible smart device.
  • Monitor supported tank-pressure, depth and approximate diver-range information.
  • SubWave sonar range: up to 100 m with clear line of sight; conditions, obstacles and diver position can reduce range or prevent communication.
  • Surface Wi-Fi connection to the app: up to 60 m under suitable conditions.
  • Preset messaging capability varies by connected computer; some can receive messages but cannot send them.
  • Connected divers can view distance and direction to the buoy; post-dive heatmaps show an approximate path.
  • Rechargeable lithium-ion battery: up to 15 hours; actual runtime depends on enabled features and conditions.
  • IPX8 water rating to 10 m; intended for surface deployment, separate from the underwater sonar transmission range.
  • Surface satellite positioning does not provide underwater GPS fixes for individual divers.
  • Supplemental monitoring and communication only; do not rely on it for emergency assistance or as a replacement for established dive safety procedures.
Why we like it

Topside tank-pressure and depth information can help crews follow a connected dive group, while preset messages give them another way to communicate.

The return-to-buoy reference and post-dive heatmaps add useful context. It is also a more interesting post-dive conversation starter than asking who last saw the boat anchor.

Who we recommend it to

Dive groups, instructors and boat crews already using compatible Garmin air-integrated computers and Descent T2 transceivers, who want topside monitoring and supported messaging through the Garmin Dive app.