Description
Big-Screen Dive Data for Serious Diving
The Garmin Descent X50i is Garmin’s large-format dive computer, designed for divers who want more information visible at a glance.
Its bright 3-inch color display gives you room to see critical dive information clearly, while the touchscreen makes setup, mapping, and surface navigation easy. Underwater, rugged leakproof metal buttons provide reliable control.
The touchscreen is intended for surface use; underwater operation is handled through the physical controls.
Built for Recreational and Technical Diving
The X50i is designed for everything from recreational diving to demanding technical profiles.
It supports advanced decompression planning using the Bühlmann ZHL-16C algorithm and provides detailed dive data including:
- Depth
- Dive time
- Ascent and descent rates
- Decompression status
- Time to surface
- Gas switches
- Dive history
- Projected ascent profile
- Compass navigation
- Tank pressure with optional air integration
Its large display makes complex technical information easier to interpret without crowding the screen.
Air Integration with Garmin Descent T2
Pair the X50i with Garmin Descent T2 transceivers for wireless air integration.
Compatible setups can monitor:
- Cylinder pressure
- Diver depth
- Diver distance
- Gas data
- Up to eight paired divers or transceivers
Pressure, depth, and distance information can be monitored from compatible T2-equipped divers at ranges of up to approximately 33 feet / 10 meters underwater.
Descent T2 transceivers are sold separately.
SubWave Diver-to-Diver Messaging
Garmin’s SubWave sonar technology allows compatible divers to exchange preset messages underwater when using paired Descent T2 transceivers.
Messaging can operate at distances of up to approximately 98 feet / 30 meters, depending on conditions and line of sight.
Compatible features may include:
- Preset messages
- Diver Assistance
- Dive-team monitoring
- Tank-pressure monitoring
- Diver depth and distance information
These tools complement traditional dive communication and established safety procedures.
3-Inch Color Display
The large 3-inch diagonal display offers a resolution of 640 x 360 pixels.
This makes it especially useful for divers who want:
- Large readable data fields
- Multiple pieces of information visible simultaneously
- Better visualization of ascent profiles
- Mapping and navigation
- Easier interpretation of technical dive data
Integrated Backup Dive Light
The X50i includes a built-in LED backup dive light.
It can provide useful illumination for:
- Equipment checks
- Low-light environments
- Reading instruments
- Backup light duty
- Surface signaling
It is intended as supplemental lighting rather than a replacement for a primary dive light on dives requiring dedicated illumination.
DiveView Maps and More Than 4,000 Dive Sites
The X50i includes DiveView maps with bathymetric depth contours and more than 4,000 preloaded dive sites worldwide.
Divers can use onboard GPS to navigate to dive locations, mark points of interest, and record surface entry and exit points.
Real-Time Depth History
The X50i can display a real-time depth-history chart during the dive.
This helps divers visualize where they have already been in the water column and better understand how the dive profile is affecting decompression obligations.
Projected Ascent Profile
Garmin’s Projected Ascent data field provides a graphical representation of the planned ascent based on the current time-to-surface calculation.
The display can show:
- Current depth profile
- Decompression stops
- Gas switches
- Estimated ascent progression
For technical divers, this provides a more intuitive view of the decompression plan than numbers alone.
3D Dive Compass
The built-in 3-axis electronic compass provides underwater navigation without requiring the computer to remain perfectly level.
Rugged Construction
The Descent X50i is designed for demanding dive environments.
It features:
- Sapphire crystal lens
- Fiber-reinforced polymer case
- Leakproof inductive metal buttons
- Dual elastic wrist bands
- Secure adjustment locks
- 20 ATM water rating
- Depth sensor rated to 200 meters / 656 feet
Key Features
- Large-format technical dive computer
- 3-inch color display
- 640 x 360 pixel resolution
- Surface touchscreen
- Leakproof physical dive controls
- Sapphire crystal lens
- Integrated backup LED dive light
- Garmin SubWave technology
- Air integration with optional Descent T2 transceivers
- Monitor up to eight compatible divers/transceivers
- Diver-to-diver preset messaging
- DiveView maps
- More than 4,000 preloaded dive sites
- Built-in GPS
- Surface entry and exit point tracking
- Real-time depth-history chart
- Projected ascent profile
- Decompression stop visualization
- Gas-switch visualization
- 3D electronic compass
- Bühlmann ZHL-16C decompression model
- 20 ATM rating
- Depth sensor rated to 200 m / 656 ft
- Garmin Dive app compatibility
Specifications
Brand: Garmin
Model: Descent X50i
Product Type: Large-Format Dive Computer
Display: 3-inch Color Display
Resolution: 640 x 360 Pixels
Lens: Sapphire Crystal
Case: Fiber-Reinforced Polymer
Bezel: Fiber-Reinforced Polymer
Physical Size: 62.4 x 98.3 x 24.5 mm
Weight Without Bands: Approx. 253 g
Weight With Nylon Band: Approx. 280 g
Band: Dual Elastic Nylon with Adjustment Locking Buckles
Water Rating: 20 ATM
Maximum Depth Rating: 200 m / 656 ft
Decompression Model: Bühlmann ZHL-16C
Battery: Rechargeable Built-In Lithium-Ion
Battery Life: Up to approximately 16 hours at Garmin’s default medium brightness setting
Air Integration: Compatible with Garmin Descent T2
Wireless Dive Technology: Garmin SubWave
Dive Light: Integrated LED
GPS: Built In





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