Garmin Descent™ S1 Buoy
Computers & Gauges - Garmin
Garmin Descent™ S1 Buoy – Sonar Communication for Serious Divers
Stay connected below the surface like never before.
The Garmin Descent™ S1 Buoy is a revolutionary sonar communication device that brings seamless diver-to-surface and diver-to-diver communication into the Garmin dive ecosystem. Whether you're a dive leader, safety officer, or enthusiast exploring with a buddy, this buoy enhances underwater awareness, safety, and tracking — all in real time.
Key Features:
-
📡 SubWave™ Sonar Network: Supports up to 8 divers with connected Descent™ dive computers and T2 transceivers.
-
💬 Two-Way Messaging: Exchange preset messages between surface crew and divers via the Garmin Dive™ app¹.
-
📍 Diver Tracking: Monitor tank pressures, depths, and distance from the buoy in real time².
-
🧭 Return-to-Base Guidance: Divers can view their distance and direction to the buoy underwater².
-
🔥 Heatmap Review: After surfacing, review underwater heatmaps on the Garmin Dive™ app to see where you've explored.
-
🔋 Long Battery Life: Enjoy up to 15 hours of dive time on a single charge.
Why You'll Love It:
Remote Diver Monitoring
Topside crew can monitor each diver’s tank pressure, depth, and distance with automatic alerts for safety thresholds — perfect for dive professionals and group leaders².
Two-Way Communication
Maintain contact underwater by exchanging preset messages through the Garmin Dive™ app — an invaluable tool for managing dive groups or responding to potential issues¹.
Enhanced Navigation
Divers always know the way back. The S1 buoy acts as a live surface reference, showing each diver their direction and distance to the buoy, up to 100m range².
Built to Withstand Adventure
This compact, rugged buoy is impact-resistant and water-rated to 10m (IPX8), designed for real-world diving conditions.
Wireless & Secure
With Wi-Fi® connectivity (up to 60m range), the S1 buoy syncs with the Garmin Dive™ app, ensuring seamless operation from the boat to beneath the waves.
Surface Positioning
Multi-GNSS support (GPS & GLONASS) ensures reliable signal reception at the surface, even in challenging environments.
Specifications:
-
Weight: Approx. 2 lbs
-
Battery Life: Up to 15 hours
-
Water Rating: IPX8 (up to 10m)
-
Connectivity: Wi-Fi® (up to 60m), SubWave™ sonar
-
Satellite Support: GPS, GLONASS
Take Your Dive Communication to the Next Level
Whether guiding a group, monitoring safety, or staying connected on solo explorations, the Garmin Descent™ S1 Buoy gives you the tools to dive smarter and safer.
What’s in the Box:
-
Descent™ S1 Buoy
-
Carrying Case
-
Charging/Data Cable
-
Tether
-
Documentation
¹ Compatible with Garmin Descent™ dive computers and T2 transceivers. Garmin Dive™ app required.
² SubWave™ network capabilities require compatible devices and pairing.
Your Local Dive Store
PRODUCT INFORMATION
- Description
- Size Charts
- Shipping
- Returns
- Reviews
Garmin Descent™ S1 Buoy – Sonar Communication for Serious Divers
Stay connected below the surface like never before.
The Garmin Descent™ S1 Buoy is a revolutionary sonar communication device that brings seamless diver-to-surface and diver-to-diver communication into the Garmin dive ecosystem. Whether you're a dive leader, safety officer, or enthusiast exploring with a buddy, this buoy enhances underwater awareness, safety, and tracking — all in real time.
Key Features:
-
📡 SubWave™ Sonar Network: Supports up to 8 divers with connected Descent™ dive computers and T2 transceivers.
-
💬 Two-Way Messaging: Exchange preset messages between surface crew and divers via the Garmin Dive™ app¹.
-
📍 Diver Tracking: Monitor tank pressures, depths, and distance from the buoy in real time².
-
🧭 Return-to-Base Guidance: Divers can view their distance and direction to the buoy underwater².
-
🔥 Heatmap Review: After surfacing, review underwater heatmaps on the Garmin Dive™ app to see where you've explored.
-
🔋 Long Battery Life: Enjoy up to 15 hours of dive time on a single charge.
Why You'll Love It:
Remote Diver Monitoring
Topside crew can monitor each diver’s tank pressure, depth, and distance with automatic alerts for safety thresholds — perfect for dive professionals and group leaders².
Two-Way Communication
Maintain contact underwater by exchanging preset messages through the Garmin Dive™ app — an invaluable tool for managing dive groups or responding to potential issues¹.
Enhanced Navigation
Divers always know the way back. The S1 buoy acts as a live surface reference, showing each diver their direction and distance to the buoy, up to 100m range².
Built to Withstand Adventure
This compact, rugged buoy is impact-resistant and water-rated to 10m (IPX8), designed for real-world diving conditions.
Wireless & Secure
With Wi-Fi® connectivity (up to 60m range), the S1 buoy syncs with the Garmin Dive™ app, ensuring seamless operation from the boat to beneath the waves.
Surface Positioning
Multi-GNSS support (GPS & GLONASS) ensures reliable signal reception at the surface, even in challenging environments.
Specifications:
-
Weight: Approx. 2 lbs
-
Battery Life: Up to 15 hours
-
Water Rating: IPX8 (up to 10m)
-
Connectivity: Wi-Fi® (up to 60m), SubWave™ sonar
-
Satellite Support: GPS, GLONASS
Take Your Dive Communication to the Next Level
Whether guiding a group, monitoring safety, or staying connected on solo explorations, the Garmin Descent™ S1 Buoy gives you the tools to dive smarter and safer.
What’s in the Box:
-
Descent™ S1 Buoy
-
Carrying Case
-
Charging/Data Cable
-
Tether
-
Documentation
¹ Compatible with Garmin Descent™ dive computers and T2 transceivers. Garmin Dive™ app required.
² SubWave™ network capabilities require compatible devices and pairing.
We will do our very best to get your order out as soon as possible. A flat shipping fee of $15 AUD applies to all orders within Australia*.
Shipping Details
- Orders are typically processed and shipped within 1-3 business days after payment is received.
- You will receive a confirmation email with tracking information once your order has been dispatched.
- Estimated delivery times vary by location but generally range from 3-7 business days.
PO Box Surcharges*
- Orders shipped to a PO Box will incur a $10 surcharge.
- Please note: Items longer than 1 meter cannot be shipped to PO Boxes.
Express Post Requests*
If you require Express Post shipping, please contact us directly for a quote:
📞 (03) 6231 9749
✉️ info@godivetassie.com.au
International Shipping*
If you are outside Australia, no worries! Email us to see how we can assist with your order:
✉️ info@godivetassie.com.au
Return & Refund Policy – Go Dive Tasmania
Our policy lasts 30 days. If more than 30 days have passed since your purchase, unfortunately, we can’t offer you a refund or exchange.
Returns
To be eligible for a return:
- Your item must be unused and in the same condition you received it.
- It must be in the original packaging, with tags attached.
- A receipt or proof of purchase is required — no exceptions.
Non-returnable items include:
- Gift cards
Do not send your purchase back to the manufacturer.
Partial Refunds (if applicable)
Partial refunds may be granted in the following situations:
- Items not in original condition, damaged, or missing parts not due to our error.
- Items returned more than 30 days after delivery.
Refunds (if applicable)
Once your return is received and inspected, we will notify you by email. We’ll let you know whether your refund is approved or rejected.
If approved, your refund will be processed, and a credit will automatically be applied to your original payment method within 7 days.
Late or Missing Refunds (if applicable)
If you haven’t received your refund:
- Check your bank account again.
- Contact your credit card company — processing times may vary.
- Contact your bank, as delays can occur before the refund is officially posted.
If you’ve done all of the above and still haven’t received your refund, please contact us at info@godivetassie.com.au.
Sale Items
Only regular-priced items may be refunded. Unfortunately, sale items are not refundable.
Exchanges (if applicable)
We only replace items if they are defective or damaged. If you need to exchange an item for the same one, email us at info@godivetassie.com.au and send your item to:
Go Dive Tasmania
67 Argyle Street
Hobart, TAS 7000
Australia
Gifts
If the item was marked as a gift and sent directly to you, you’ll receive a gift credit for the return value. Once the item is received, a gift certificate will be sent to you.
If the gift wasn’t marked as such or was shipped to the gift giver, the refund will be issued to the original purchaser, who will be notified of the return.
Shipping
To return your product, send it to:
Go Dive Tasmania
67 Argyle Street
Hobart, TAS 7000
Australia
- You are responsible for return shipping costs.
- Shipping costs are non-refundable. If you receive a refund, return shipping will be deducted from the total.
- For items over $75, we recommend using a trackable shipping service or purchasing shipping insurance. We do not guarantee receipt of returned items.