Garmin Descent X50i Dive Computer | Expedition GPS & SubWave - Divers Cove FL

~~$1499.99~~ $1249.99

Part Number:010-02853-00 Manufacturer: Garmin

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Garmin Descent X50i - Ultimate Expedition Dive Computer & Smartwatch

Experience the ultimate in dive computer technology with the Garmin Descent X50i at Divers Cove, South Florida's trusted 5-Star PADI dive center. This expedition-grade dive computer features revolutionary SubWave sonar communication, built-in LED flashlight, massive 60-day battery life, rugged titanium construction, and advanced GPS navigation. Perfect for technical divers, expedition leaders, and adventure seekers. Get expert fitting, professional configuration, and lifetime support from our experienced team.

Product Overview

The Garmin Descent X50i represents the absolute pinnacle of dive computer technology—a rugged, expedition-grade device built for the world's most demanding divers and adventurers. Combining revolutionary SubWave™ sonar communication, built-in LED flashlight, massive 60-day battery life, and premium titanium construction in a robust 51mm case, the X50i is engineered to perform in the harshest conditions on Earth.

Whether you're planning multi-week dive expeditions, technical cave exploration, remote liveaboard adventures, or extreme wilderness travel, the Descent X50i delivers uncompromising performance, reliability, and innovation. This isn't just a dive computer—it's your ultimate expedition companion.

Why Choose the Garmin Descent X50i?

SubWave Sonar Communication: Send and receive messages underwater up to 30 meters away
Built-In LED Flashlight: Powerful multi-mode illumination always on your wrist
Massive 60-Day Battery Life: Longest battery of any Garmin dive computer
Expedition GPS: Multi-band GNSS with worldwide topographic maps
Rugged Titanium Construction: Military-grade durability for extreme conditions
51mm Display: Large, ultra-visible AMOLED screen for maximum readability
Advanced Dive Computer: Air, nitrox, trimix, CCR, gauge, and apnea modes
Wireless Air Integration: Monitor up to 5 tank transmitters simultaneously
8-Gas Support: Full technical diving capability
Premium Smartwatch: Music, payments, notifications, and 60+ sports modes
Tactical Styling: Expedition-ready design for professionals and adventurers
Ultimate Reliability: Built to survive and perform anywhere on the planet

Expedition-Grade Performance - Built for Extreme Adventures

The Descent X50i is engineered for divers and adventurers who venture beyond the ordinary—those who explore remote reefs, deep wrecks, cave systems, and the world's most challenging dive sites.

What Makes It "Expedition-Grade"?

Extreme Durability:

Titanium case and bezel: Lightweight yet incredibly strong
Sapphire lens: Scratch-resistant with anti-reflective coating
MIL-STD-810 tested: Military standard for thermal, shock, and water resistance
10 ATM water resistance: 100 meters surface rating
Corrosion-resistant: Designed for saltwater and harsh environments
Impact-resistant: Survives drops, bumps, and rough handling

Massive 60-Day Battery Life:

Smartwatch mode: Up to 60 days on a single charge

Battery saver mode: Up to 90 days

Dive mode: Up to 60 hours continuous diving

GPS mode: Up to 149 hours

Expedition GPS mode: Up to 94 days with reduced GPS tracking

Solar charging compatible: Extends battery even further (with solar models)

Why Battery Life Matters for Expeditions:

Multi-week liveaboard trips without charging
Remote locations without reliable power
Back-to-back dive days without battery anxiety
Backup power for emergency situations
Reduces gear weight (fewer charging cables/batteries)
Peace of mind during extended adventures

Expedition Use Cases:

Remote Liveaboards:

7–14 day trips to Palau, Maldives, Galápagos, Red Sea
Multiple dives per day without charging
GPS tracking for dive site navigation
SubWave communication with dive buddies

Technical Cave & Wreck Expeditions:

Multi-day cave exploration projects
Deep wreck penetration dives
LED flashlight for backup illumination
8-gas support for complex decompression

Professional Diving:

Scientific research expeditions
Commercial diving projects
Military and law enforcement operations
Search and rescue missions

SubWave Sonar Communication - Revolutionary Underwater Messaging

The X50i features Garmin's groundbreaking SubWave sonar technology, allowing divers to send and receive text messages underwater without hand signals or dive slates.

How SubWave Works

Sonar-Based Messaging:

Uses sonar waves (not radio or cellular) to transmit through water
Works up to 30 meters (98 feet) in optimal conditions
No additional equipment required beyond compatible Garmin dive computers
Messages appear on your AMOLED display in real-time
Pre-programmed quick messages and custom text options
Message log and history for post-dive review

Communication Range:

Up to 30 meters between X50i and other Mk3i/X50i devices
Range varies based on water conditions, thermoclines, and obstacles
Works in fresh water and salt water
Effective in murky or low-visibility conditions
No line of sight required

SubWave for Expedition Diving

Team Coordination:

Communicate with multiple divers simultaneously during complex dives
Share critical information without surfacing
Coordinate gas switches and decompression stops
Alert team to hazards, equipment issues, or discoveries
Maintain situational awareness in overhead environments

Safety Enhancement:

Request assistance discreetly without panic
Share air pressure and gas remaining
Coordinate emergency procedures
Alert buddies to navigation changes
Confirm dive plan modifications

Professional Applications:

Scientific research teams sharing observations
Commercial dive teams coordinating work
Instructor/divemaster managing groups
Technical dive teams executing complex plans
Search and rescue communication

Pre-Programmed Quick Messages

Built-In Messages Include:

"OK?" / "OK"
"Low on air"
"Ascend" / "Descend"
"Stay together"
"Look at this"
"Which direction?"
"Safety stop"
"End dive"
Custom messages you create

SubWave Advantages Over Traditional Methods

Traditional Communication:

Hand signals: Limited vocabulary, requires line of sight

Dive slates: Slow, requires stopping to write

Tank bangers: Loud, limited information, disturbs marine life

SubWave Benefits:

Detailed messages with specific information

Works without line of sight

Silent and discreet

Fast and efficient

No additional equipment to carry

Permanent message log for review and analysis

Professional communication for serious diving

Built-In LED Flashlight - Always-Ready Illumination

The X50i features a powerful built-in LED flashlight integrated into the watch case—essential for expedition diving and emergency situations.

LED Flashlight Features

Brightness & Modes:

High-intensity white LED

Multiple brightness levels (low, medium, high)

Strobe mode for emergencies and signaling

Red light mode for night vision preservation

Quick access via dedicated button

Long runtime due to massive battery

Expedition Applications:

Night Diving:

Illuminate marine life and reef features

Check gauges and computer display in darkness

Signal buddy or boat

Backup light if primary fails

Navigate to/from entry point

Cave & Wreck Diving:

Peer into dark spaces and compartments

Illuminate tight restrictions

Emergency backup illumination

Check equipment connections

Read dive slate or wet notes

Emergency Situations:

Signal for help with strobe mode

Attract attention of boat or shore support

Navigate to surface in low visibility

Illuminate during equipment problems

Emergency signaling in wilderness

Why Built-In Light Matters

Expedition Reliability:

Always on your wrist—never forget it

No separate light to fail, flood, or lose

Integrated battery means no separate cells to die

One less piece of equipment to maintain

Reduces gear weight and complexity

Emergency backup always available

Tactical Advantage:

Discreet illumination when needed

Frees up hands for other tasks

Quick access without fumbling

Red light preserves night vision

Strobe mode for signaling rescue

Advanced GPS & Navigation - Never Get Lost

The Descent X50i features multi-band GNSS with worldwide topographic maps, making it the ultimate navigation tool for dive expeditions and wilderness adventures.

GPS & GNSS Features

Multi-Band GNSS Support:

GPS, GLONASS, and Galileo satellite systems

Multi-band (dual-frequency) for enhanced accuracy

Faster satellite acquisition in challenging conditions

More accurate positioning in canyons, forests, and urban areas

Works worldwide without cellular connection

Dive Site Navigation:

Surface GPS marks dive entry and exit points

Navigate back to boat or shore with TracBack routing

Save favorite dive sites with GPS coordinates

Breadcrumb trail shows your surface path

Distance and bearing to waypoints

Topographic Maps:

Worldwide basemap preloaded

TopoActive maps for land navigation

Ski resort maps for winter adventures

Golf course maps (43,000+ preloaded)

Downloadable regional maps via Garmin Connect

ABC Sensors:

Altimeter: Elevation tracking for altitude diving and mountain adventures

Barometer: Weather monitoring and storm alerts

Compass: 3-axis electronic compass with bearing pointer

Temperature: Ambient and water temperature tracking

Navigation Use Cases

Expedition Planning:

Mark dive sites during reconnaissance

Plan multi-site dive itineraries

Navigate to remote dive locations

Track surface intervals between sites

Share GPS coordinates with team

Rugged 51mm Titanium Design - Built to Last

The X50i's 51mm titanium case delivers maximum display size, durability, and visibility in a premium expedition-grade package.

Premium Construction

Titanium Benefits:

Lightweight: 40% lighter than stainless steel

Strong: Higher strength-to-weight ratio than steel

Corrosion-resistant: Immune to saltwater corrosion

Hypoallergenic: Safe for sensitive skin

Premium feel: Expedition-grade quality

Temperature resistant: Comfortable in extreme heat/cold

Sapphire Lens:

Scratch-resistant crystal

Anti-reflective coating for underwater clarity

Maintains visibility after years of use

Superior to mineral glass or acrylic

51mm Display Advantages:

Larger screen: Easier to read underwater and in bright sun

More data fields: Display more information simultaneously

Better visibility: Critical for technical diving and navigation

Professional appearance: Substantial, expedition-ready look

Enhanced AMOLED: 1.4" brilliant color display (454 x 454 pixels)

Who Prefers 51mm:

Technical divers who need maximum data visibility

Expedition leaders managing complex operations

Divers with larger wrists (7+ inches)

Professionals who want commanding presence

Anyone prioritizing screen size and battery life

Adventurers who want ultimate ruggedness

Expedition Styling

Tactical Aesthetics:

Rugged, military-inspired design

Non-reflective finishes

Expedition-ready appearance

Professional styling for any environment

Substantial wrist presence

Durability Features:

Reinforced case construction

Protected buttons and crown

Shock-resistant internal components

Corrosion-resistant materials throughout

Built to survive extreme conditions

Key Features & Specifications

SubWave Sonar Communication

Revolutionary Technology:

Underwater messaging up to 30 meters range

Send and receive text messages via sonar

Pre-programmed quick messages

Custom message creation

Compatible with other Mk3i and X50i devices

Message log and history

Works in fresh and salt water

No additional equipment required

Built-In LED Flashlight

Integrated Illumination:

High-intensity white LED

Multiple brightness levels (low, medium, high)

Strobe mode for emergencies

Red light mode for night vision

Quick access button control

Always available on your wrist

Long runtime with 60-day battery

Dive Computer Capabilities

Dive Modes:

Single and multi-gas diving (up to 8 gases)

Air, nitrox (21-100% O2), and trimix support

Closed-circuit rebreather (CCR) mode

Gauge mode

Apnea and apnea hunt modes

Sidemount and backmount configurations

Advanced Dive Metrics:

Real-time depth, time, and temperature

No-decompression limits (NDL) and decompression stops

Ascent/descent rate with alerts

Safety stop countdown timer

Gas time remaining (GTR) calculations

Tissue loading and saturation graphs

Surface interval and repetitive dive tracking

Dive log with automatic cloud sync

PO2 and gas density monitoring

Customizable dive screens and data fields

Air Integration:

Wireless tank pressure monitoring (Descent T2 transmitter sold separately)

Gas time remaining (GTR) based on consumption rate

Support for up to 5 transmitters simultaneously

Low tank pressure alerts

Air consumption rate tracking

Perfect for sidemount, backmount, and team diving

Safety & Alerts:

Audible tones and vibration alerts

Missed decompression warnings

Fast ascent alarms

High/low PO2 alerts

CNS oxygen toxicity tracking

Customizable conservatism settings (Bühlmann ZHL-16c algorithm)

Gradient factor customization for technical diving

Display & Interface

AMOLED Touchscreen:

1.4" (35.4 mm) brilliant AMOLED display

454 x 454 pixel resolution

Always-on mode available

Exceptional underwater visibility

High brightness for tropical sun

Responsive touchscreen with button controls

Customizable dive screens and data fields

High contrast for easy reading in all conditions

User Interface:

Intuitive menu navigation

Quick access to dive modes, SubWave, and flashlight

Large, easy-to-read fonts

Customizable watch faces

Dive-specific screens for all experience levels

Expedition-focused data layouts

GPS & Navigation

Multi-Band GNSS:

GPS, GLONASS, and Galileo satellite systems

Dual-frequency multi-band for enhanced accuracy

Surface GPS for dive site marking

Entry/exit point navigation

TracBack routing to starting point

Worldwide topographic maps preloaded

Breadcrumb trail tracking

Waypoint navigation and management

ABC Sensors:

Altimeter for elevation tracking

Barometer for weather monitoring

3-axis electronic compass

Storm alerts and weather forecasts

Temperature tracking (air and water)

Smartwatch & Fitness Features

Health Monitoring:

Wrist-based heart rate (Elevate™ V5 sensor)

Pulse Ox blood oxygen saturation

Sleep tracking with sleep score and insights

Stress tracking and relaxation reminders

Body Battery™ energy monitoring

Respiration rate tracking

Women's health tracking

Health Snapshot™ feature

Hydration tracking

Jet lag advisor for world travel

Training & Performance:

60+ preloaded sports apps

Advanced running dynamics

VO2 max and training status

Training readiness and recovery time

PacePro™ pacing strategies

ClimbPro™ ascent planner

Swimming metrics (pool and open water)

Cycling power and performance metrics

Ski/snowboard tracking

Golf courses (43,000+ preloaded)

Hiking, climbing, and mountaineering modes

Smart Features:

Music storage (up to 2,000 songs)

Spotify, Amazon Music, and Deezer support

Garmin Pay™ contactless payments

Smart notifications (calls, texts, emails, apps)

Safety and tracking features (incident detection, assistance)

Connect IQ™ store (watch faces, apps, data fields)

Weather forecasts and alerts

Calendar, alarm, and timer functions

Sunrise/sunset times for dive planning

Battery Performance - Industry Leading

Extended Battery Life:

Smartwatch mode: Up to 60 days (longest in Garmin dive lineup)

Battery saver mode: Up to 90 days

Dive mode: Up to 60 hours continuous

GPS mode: Up to 149 hours

GPS with music: Up to 20 hours

Expedition GPS mode: Up to 94 days

Max battery mode: Months of use

Power Management:

USB charging (full charge in ~2 hours)

Power manager for custom battery profiles

Battery percentage display

Low power alerts

Efficient power consumption despite LED and SubWave

Solar charging compatible (solar models)

Connectivity & Compatibility

Wireless Connectivity:

Bluetooth®, ANT+®, Wi-Fi®

Smartphone pairing (iOS and Android)

Garmin Dive™ app integration

Garmin Connect™ app sync

Garmin Explore™ app for maps

Automatic dive log sync

SubWave communication with other Mk3i/X50i devices

Wireless firmware updates

Transmitter Compatibility:

Garmin Descent T2 transmitters

Support for up to 5 transmitters

Real-time tank pressure monitoring

Wireless pairing and configuration

Physical Specifications

Dimensions & Weight:

Case diameter: 51mm (large expedition size)

Titanium case with sapphire lens

QuickFit® 26mm band system

Weight: ~96 grams with silicone band

10 ATM water resistance (100 meters surface)

Band Options:

Silicone (included)

Nylon NATO-style straps

Titanium metal bands

Leather options

QuickFit® tool-free band changes

Garmin Descent X50i vs. Other Models

X50i vs. Mk3i 51mm

X50i Advantage: 60-day battery (vs. 25 days), expedition GPS, rugged construction, longer dive mode (60 vs. 51 hours)

Mk3i 51mm Advantage: Slightly lighter, lower price point

Best For X50i: Expedition divers, remote travel, multi-week trips, professionals needing maximum battery

X50i vs. Mk3i 43mm

X50i Advantage: Larger display, 60-day battery, expedition features, better visibility, longer dive mode

Mk3i 43mm Advantage: Compact size, lighter weight, better for smaller wrists

Best For X50i: Technical divers, expedition leaders, professionals prioritizing performance over size

X50i vs. Shearwater Perdix AI

X50i Advantage: SubWave communication, LED flashlight, 60-day battery, GPS, topographic maps, smartwatch features

Perdix AI Advantage: Dive-focused interface, replaceable batteries, proven in tech community

Best For X50i: Divers who want all-in-one expedition device with revolutionary communication

X50i vs. Suunto D5

X50i Advantage: SubWave, LED flashlight, massive battery, air integration, GPS, expedition features, 8-gas support

D5 Advantage: Compact size, lower price

Best For X50i: Serious expedition divers who demand the absolute best

X50i vs. Garmin Descent G2

X50i Advantage: SubWave, LED flashlight, 60-day battery, air integration, AMOLED display, 8-gas support, expedition GPS

G2 Advantage: More affordable, lighter weight

Best For X50i: Expedition divers, technical divers, professionals who need ultimate performance

Who Should Buy the Garmin Descent X50i?

The Descent X50i is the ultimate choice for:

Expedition Divers: Multi-week liveaboards, remote dive travel, world exploration

Technical Divers: Cave, wreck, deep, and CCR diving with 8-gas support

Dive Professionals: Instructors, divemasters, guides managing groups with SubWave

Military & Law Enforcement: Tactical operations requiring rugged, reliable gear

Scientific Researchers: Field expeditions with GPS mapping and long battery

Adventure Travelers: Backpackers, climbers, and explorers who dive

Commercial Divers: Professional operations requiring maximum reliability

Serious Enthusiasts: Divers who want the absolute best technology available

World Travelers: Global adventurers needing one device for everything

Expedition Leaders: Coordinating teams in remote, challenging environments

Why Buy from Divers Cove?

When you purchase the Garmin Descent X50i at Divers Cove, you get more than just a dive computer:

Expert Guidance & Setup

37 Years of Experience: Family-owned dive center serving South Florida since 1988
PADI 5-Star IDC Training Center: Highest level of PADI recognition
Knowledgeable Staff: Our team dives what we sell and provides expert advice
SubWave Training: We'll teach you how to use SubWave communication effectively
LED Flashlight Optimization: Learn all modes and best practices
GPS Configuration: We'll set up maps, waypoints, and navigation features
Professional Setup: We'll configure your X50i for your specific diving style
Air Integration Setup: We'll pair and configure your Descent T2 transmitters

Expedition Planning Support: Advice on using X50i for remote dive travel

Lifetime Support: Questions after purchase? We're always here to help

Comprehensive Service

In-Store Fitting: Try on the X50i and experience the display and features
Band Selection: Choose from silicone, nylon, titanium, and leather options
Software Updates: We'll ensure your device has the latest features
Map Downloads: We'll help you load regional maps for your adventures
Warranty Support: Full manufacturer warranty with local service coordination
Trade-In Program: Upgrade your old dive computer and save 20% on new gear
Accessory Bundle Deals: Save when you add Descent T2 transmitters and bands

Local Convenience & Community

In-Stock Availability: See and purchase today at our Davie, FL location

Easy Returns: Local support if you need assistance or exchanges

Dive Trip Integration: Use your new X50i on our local and international dive trips

SubWave Community: Connect with other Mk3i/X50i users in our diving community

Ongoing Education: Advanced dive computer workshops and technical diving courses

Expedition Support: Planning a big trip? We'll help you prepare

Frequently Asked Questions

Q: What makes the X50i "expedition-grade"?A: The X50i features 60-day battery life (longest in Garmin's lineup), rugged titanium construction, MIL-STD-810 testing, multi-band GPS, worldwide topographic maps, and SubWave communication—all designed for multi-week expeditions in remote locations without reliable power or support.

Q: How does the 60-day battery compare to other dive computers?A: It's the longest battery life of any Garmin dive computer. Most dive computers last 1–3 days in dive mode; the X50i lasts up to 60 hours. In smartwatch mode, it lasts 60 days vs. 10–25 days for competitors. This is game-changing for liveaboards and expeditions.

Q: Can I use SubWave with Mk3i users?A: Yes! SubWave works between X50i and Mk3i devices (both 43mm and 51mm). All users need a compatible Garmin dive computer with SubWave.

Q: Is the 51mm size too large?A: The 51mm case is substantial but not oversized for expedition use. It's ideal for divers with wrists 7+ inches, those who prioritize screen size and battery, and professionals who want maximum visibility. Try it in-store to confirm fit.

Q: Can I use this for technical diving?A: Absolutely! The X50i supports up to 8 gas mixes, trimix, CCR mode, sidemount/backmount, and uses the Bühlmann ZHL-16c algorithm with customizable gradient factors. SubWave enhances team coordination during complex technical dives.

Q: Does the LED flashlight drain the battery?A: No, the LED uses minimal power thanks to the massive 60-day battery. You can use it regularly without impacting dive time or smartwatch functionality.

Q: What maps are included?A: The X50i includes worldwide basemaps, TopoActive maps for land navigation, and ski resort maps. You can download additional regional maps via Garmin Connect for specific areas.

Q: Is this waterproof for diving?A: Yes, the X50i is rated to 10 ATM (100 meters) for surface activities and is a full dive computer for depths up to recreational and technical limits. It's built for professional diving.

Q: Can I use this for hiking and other sports?A: Yes! The X50i includes 60+ sports modes, topographic maps, ABC sensors, and expedition GPS. It's perfect for hiking, climbing, skiing, running, cycling, and any adventure sport.

Q: How does air integration work?A: You'll need Garmin Descent T2 transmitters (sold separately), which wirelessly send tank pressure data to your X50i. The watch supports up to 5 transmitters for sidemount or team diving.

Pricing & Availability

Available Configurations

Titanium case with sapphire lens

Multiple band options (silicone, nylon, titanium, leather)

All include SubWave, LED flashlight, GPS, and full dive computer features

Recommended Accessories

Garmin Descent T2 Transmitters: Wireless tank pressure monitoring (sold separately)

Additional Bands: Silicone, nylon, titanium, and leather options

Screen Protectors: Keep your sapphire lens pristine

Charging Cable: Extra USB charging cable for expeditions

Regional Maps: Download specific topographic maps for your adventures

Financing Options Available

Ask about flexible payment plans to make your purchase easier.

Bundle & Save

Combine your X50i with transmitters, additional bands, or other gear and save! Ask about our complete expedition dive packages.

Ready for Your Next Expedition?

The Garmin Descent X50i represents the absolute pinnacle of dive computer and adventure watch technology. With revolutionary SubWave sonar communication, you can coordinate with your team underwater. The built-in LED flashlight provides illumination always on your wrist. The massive 60-day battery ensures you'll never run out of power on multi-week expeditions. And the rugged titanium construction guarantees reliability in the harshest conditions on Earth.

Whether you're planning a liveaboard to the Maldives, a technical cave expedition, a wilderness adventure combining diving and hiking, or professional operations in remote locations—the X50i is your ultimate companion.

Visit Divers Cove Today

Divers Cove2335 S. University Drive Davie, FL 33324

Hours:Mon-Fri: 10am-6pmSat: 9am-5:30pmSun: 10am-4pm

Contact: (954) 473 1220 info@diverscovefl.com www.diverscovefl.com

Come experience the X50i in person. See the massive display, test SubWave communication, and discover why it's the ultimate expedition dive computer.

About Divers Cove

Since 1988, Divers Cove has been South Florida's premier family-owned dive center. As a PADI 5-Star IDC Training Center, we offer the smallest class sizes (max 4-6 students), expert instruction, and a perfect 37-year safety record. We serve divers throughout Broward County, including Davie, Fort Lauderdale, Hollywood, Pembroke Pines, Miami, Boca Raton, and Palm Beach County.

From beginner Open Water certification to advanced technical training, equipment sales, service, rentals, and dive trips—we're your complete diving resource. Our passionate team dives what we teach and sells only gear we trust.

Join the Divers Cove family and experience the ultimate in expedition diving with the X50i.