Garmin Descent™ X30

$1,299

Ready to dive deeper?
Take control of every dive with the Descent™ X30 — a vibrant 2.4″ colour display, leakproof buttons, multiple dive profiles, and up to 30 hours of battery life. Order yours today and hit the water with confidence.

Buy the Descent™ X30 · Learn more

Product/Colour: Dive computer

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  • Descent™ X30 scuba diving computer
  • 2.4″ vibrant color display for clear underwater readability
  • Leakproof buttons for reliable operation in wet conditions
  • Supports multiple dive profiles to suit different diving styles
  • Long battery life — up to 30 hours per charge

View Full Details, Specifications and Compatiability on Supplier Website

ANSWER THE OCEAN’S CALL

The Descent X30 dive computer features a vibrant 2.4” display and a housing and bezel made with recycled ocean-bound plastics. With four large metal buttons, up to 30 hours of battery life and support for multiple dive profiles, it’s perfect for your next dive.

  • 2.4” VIBRANT COLOUR DISPLAY
  • RUGGED DESIGN IS 10 ATM DIVE-RATED
  • 4 LARGE, EASY-TO-USE LEAKPROOF BUTTONS
  • CHOOSE FROM MULTIPLE DIVE PROFILES
  • MARK ENTRY AND EXIT POINTS WITH SURFACE GPS
  • DIVE LONGER WITH NDL AWARE™ DEPTH METRICS

2.4” COLOUR DISPLAY

See critical information and custom dive screens at a glance on a large and easy-to-read colour display.

FLIP-SCREEN MODE

Orient the buttons on top of the display with flip-screen mode. Navigate your custom dive screens with up to three data fields per page. The large metal buttons are easy to use, even with gloves on.

MULTIPLE DIVE PROFILES

Enjoy support for single- and multi-gas dive profiles, including trimix.

NDL AWARE™ DEPTH METRICS

Extend your bottom time with NDL Aware depth metrics that work in real time to show how specific depth changes can impact your no-decompression limit (NDL).

SURFACE GPS AND COMPASS

Mark your surface entry and exit points with advanced satellite connectivity. Find your target before you dive with this GPS tool, and navigate underwater with the 3-axis digital compass.

ECO-FRIENDLY DESIGN

100% of the plastic used in the dive computer’s housing and bezel is made with recycled ocean-bound plastics.

DYNAMIC DEPTH CHART

See your depth history during a dive, and get a clear understanding of where you have been and how it affects your decompression plan to help guide your ascent.

DIVE BANDS

The comfortable and durable hinged silicone dive band fits easily over your wetsuit. Descent X30 is also compatible with 26 mm QuickFit® bands, including the bungee mount.

DIVE LOG

Store and review data for all your dives — and share via the Garmin Dive™ app.

GARMIN DIVE APP

Pair the app with your Descent dive computer to automatically sync and upload your dive logs.

WATER THERMOMETER

Find the thermocline with the onboard water temperature sensor.

SURFACE INTERVAL TRACKING

This feature helps you plan multiple dives in a day to ensure your body has enough time to properly off-gas.

STAY ALERT

Increase situational awareness with audible and vibration alerts.

INREACH® CONNECTIVITY

When paired with an inReach satellite communicator and dive case, remotely trigger an SOS message when you are above the surface1.

SETUP SHARING

Before a dive, avoid manually entering dive settings across both your primary and backup dive computers. Instead, seamlessly synchronise two compatible Descent dive computers, ensuring that each can function as a fully interchangeable backup to the other. You can sync dive settings such as gases, conservatism and alerts.

What You'll Love

Watch display type LCD
Water rating Dive (100 metres)

General

Strap material Silicone
Lens Material Chemically strengthened glass
Bezel Material Fiber-reinforced polymer
Case material Fiber-reinforced polymer
QuickFit® watch band compatible Yes (26 mm)
Physical size 78.7 x 61.8 x 24.7 mm
Silicone band: 140-360 mm
Weight No bands: 159 g
With bands: 198.4 g
Leakproof inductive buttons
Display Size 2.4″ diagonal
Display Resolution 320 x 240 pixels RGB
Colour display
Large font option
Battery type Lithium ion
Battery life Medium brightness (default): 30 hours
High brightness: 10 hours
Night dive: 47 hours
Charging method Garmin proprietary clip charger
Memory/History 4 GB

Clock Features

Time/date
GPS Time Sync
Automatic daylight saving time
Stopwatch
Sunrise/sunset times

Sensors

GPS
GLONASS
Galileo
Compass
Gyroscope
Accelerometer
Thermometer
Ambient light sensor
Depth sensor

Daily Smart Features

Connectivity Bluetooth®, ANT+®
Smart Notifications
Text response/reject phone call with text (Android™ only)
Weather forecasts
Realtime settings sync with Garmin Connect™ mobile Yes (also with Garmin Dive app)
Smartphone compatibility iPhone®, Android™
Passcode

Activity profiles

Dive Diving

Tactical Features

Dual grid coordinates

Diving Features

Dive activity maximum operating depth 100 metres
Single-gas mode
Multi-gas mode
Gauge mode
Decompression model Bühlmann ZHL-16c with gradient factors
Nitrox support
Trimix support
Gas mixes Air, Nitrox and Trimix, up to 100% O2; 1 bottom gas and up to 11 deco and/or backup gasses.
PO2 Up to 2.0 with customisable deco PO2 setting
Auto start/end dive
Custom end-dive timeout Yes (20s to 10 m)
Safety Stop Yes (customisable off/3min/5min)
Deep Stops Yes (using custom gradient factors)
Customizable conservatism Yes (low/medium/high or custom using gradient factors)
Dive ascent/descent rate indicator
Automatic altitude adjustment
No fly time
Dive planner Yes (basic NDL + multi-gas deco planner)
Backlight Yes (configurable intensity; always on)
Automatically saves dive entry and exit locations
Sync dive log to Garmin Dive™ Mobile app
Custom dive data screens
Alerts & alarms Audible and vibration alarms for ascent rate, PO2, CNS/OTU, NDL, deco, gas switching. Customisable (up to 40) audible and/or vibration per dive mode, based on depth or time
3-axis dive compass Yes (with adjustable heading, quick change to 90R, 90L and reciprocal). Indicates degrees and direction back to set heading
Missed Deco Lockout Yes (can be disabled prior to dive with user acknowledgement)
Residual Tissue Loading Reset Yes (on the surface with user acknowledgement)
Surface diver status widget Yes (surface interval, N2/HE loading, CNS, OTU and tissue compartment status)

Boating Features

Built-in barometer and tide tables Yes (downloadable tides)

Training, Planning and Analysis Features

GPS speed and distance
Touch and/or button lock
Activity history on watch

Outdoor Recreation

Point-to-point navigation
Explore Nearby
REFERENCE POINT
Distance to destination
GPS coordinates

Security Information

Security updates until at least (YYYY-MM-DD) 2027-09-16

In the Box

  • Descent X30 dive computer with hinged silicone dive band
  • Charging clip/cable
  • Screen protector kit
  • Documentation