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When it comes to diving, safety and communication are everything. The Garmin Descent S1 Diver Communication Buoy is designed to bring divers and topside crews closer than ever, ensuring reliable monitoring and seamless messaging underwater. Built with SubWave sonar technology, the S1 buoy enables real-time diver communication, tank pressure monitoring, and location tracking when paired with Descent T2 transceivers and compatible Garmin Descent dive computers.

Stay Connected Below the Surface

With the Garmin Descent S1, divers can maintain a constant link to the surface crew. When paired with up to eight Descent T2 transceivers, topside users can use the Garmin Dive app to:
✅ Monitor diver tank pressure, depth, and distance
✅ Exchange preset messages with divers underwater
✅ Track approximate diver locations in the SubWave sonar network

Some compatible dive computers can receive but not send messages, making the S1 a flexible solution for a wide range of diving setups.

Navigation and Positional Awareness

Divers can see their distance and direction back to the buoy, providing a critical point of reference during dives. Once they surface, they can sync their dive data to the Garmin Dive app to review detailed underwater heatmaps and gain insight into their exact dive path.

Built to Perform in Any Condition

The Garmin Descent S1 is engineered for rugged performance:

• Up to 15 hours of battery life for a full day of diving

• Rugged, compact 2.2-lb design with impact resistance

• IPX8 water resistance up to 10 meters

• Secure Wi-Fi connectivity with a range of up to 60 meters

• Multi-GNSS support (GPS + GLONASS) for improved signal reception even in challenging environments

Garmin Descent S1 Specifications:

• Model Name: Garmin Descent S1 Buoy

• Model Year: 2025

• Color: Red

• Dimensions: 5.3" x 8.0" x 8.0"

• Battery Life: Up to 15 hours

• Connectivity: Bluetooth, Wi-Fi

• Weight: 2.2 lbs

Why Divers Love It

Whether you’re exploring wrecks, caves, or open water, the Garmin Descent S1 buoy ensures you are never out of reach. With its reliable communication, advanced monitoring, and rugged build, it’s the ultimate companion for safe and connected diving adventures.

👉 Bundle Option Available: Get the Garmin Descent S1 + T2 Bundle to maximize functionality with up to eight T2 transceivers included.

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