Garmin Descent S1 Diver Communication Buoy
Garmin Descent S1 Diver Communication Buoy is backordered and will ship as soon as it is back in stock.
Pickup currently unavailable at 23D
Warranty
Warranty
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Description
Description
The Garmin Descent S1 Diver Communication Buoy brings advanced connectivity to dive operations through SubWave sonar networking. Integrated with the Garmin dive ecosystem, it enables surface teams to monitor and track dive groups, exchange preset messages, and provide navigational reference for returning divers.
Designed for rugged underwater environments, the Descent S1 supports monitoring of up to eight divers, tank pressures, depths, and real-time alerts. Divers wearing compatible dive computers paired with Descent T2 transceivers can view distance and direction back to the buoy, promoting safer return-to-base navigation.
After the dive, information such as heatmaps of exploration areas can be reviewed via the Garmin Dive smartphone app. With robust waterproofing and rechargeable power, the buoy delivers full-day operation and reliable surface connectivity throughout dive missions.
Features
Features
- SubWave sonar network supports communication with up to eight divers
- Remote monitoring of diver tank pressures, depths, distances, and alerts
- Two-way preset messaging through Garmin Dive app to divers using compatible Descent T2 paired dive computers
- Diver distance and direction tracking for return-to-base reference
- Post-dive heatmap review of exploration locations via app
- Rechargeable lithium-ion battery providing up to 15 hours of dive time
- Wi-Fi connection to Garmin Dive app within 60 m for surface communication
- Multi‑GNSS support including GPS and GLONASS for accurate location tracking at surface
- Durable, impact-resistant housing (2.2 lb / 981 g) with IPX8 rating to 10 m
Specifications
Specifications
| Physical Dimensions (W×H) | 8.0 x 5.3 in (203 x 135 mm) |
|---|---|
| Weight | 2.2 lb (981 g) |
| Water Rating | IPX8 to 10 m |
| Operating & Storage Temperature | -20 to 60 °C (-4 to 140 °F) |
| Underwater Temperature Range | 0 to 40 °C (32 to 104 °F) |
| Charging Temperature Range | 0 to 45 °C (32 to 113 °F) |
| Battery Type | Internal rechargeable lithium-ion |
| Battery Life | Up to 15 hours |
| Charging Method | Garmin proprietary clip charger with USB‑C connector |
| Wireless Frequency & Power | 2.4 GHz at 19.16 dBm max |
| Connectivity | Bluetooth, Wi‑Fi, ANT, SubWave technologies |
| Surface Transmission Range (Wi‑Fi) | Up to 60 m (197 ft) |
| Underwater Transmission Range (SubWave) | Up to 100 m (328 ft) line of sight |
| Sensors | GPS, GLONASS |
What's Included
What's Included
- Descent™ S1 buoy
- Carrying case
- Charging/data clip
- Tether
- Documentation
Payment & Security
Payment methods
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WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
