The Garmin Descent™ X30 is the next-generation wrist-mounted dive computer built for adventure seekers who demand clarity, simplicity, and sustainability in one device.
Featuring a brilliant 2.4-inch color display, a rugged housing crafted from 100% recycled ocean-bound plastics, and large glove-friendly metal buttons, the X30 blends performance and environmental consciousness like no other dive computer.
It supports single- and multi-gas dives including trimix, offers NDL Aware™ real-time decompression insights, and features integrated GPS and a 3-axis digital compass for accurate surface navigation.
Compact yet powerful, the Descent X30 gives divers of all levels the confidence to explore deeper, longer, and more sustainably — all while keeping essential data right at your fingertips.
Engineered for Simplicity, Designed for Exploration
The Descent X30’s bold, 2.4-inch color display delivers outstanding visibility in all conditions — from shallow reef dives to deep wrecks — ensuring that critical data like depth, NDL, and ascent rate are always easy to read at a glance.
Its flip-screen mode lets you customize the display orientation for left- or right-handed button access, while the four large inductive buttons are designed to be leakproof, responsive, and glove-compatible.
Eco-Friendly Construction Meets Next-Level Functionality
The Descent X30 is Garmin’s most sustainable dive computer to date, with a case and bezel made entirely from recycled ocean-bound plastics.
Despite its eco-conscious build, it retains Garmin’s signature durability — dive-rated to 10 ATM (100 meters) and engineered for the toughest underwater environments.
Dive planning and post-dive recovery are made easier than ever with surface interval tracking, customizable safety stop and deep stop alerts, and decompression planning based on the trusted Bühlmann ZHL-16c model.
Integrated GPS lets you mark entry and exit points, while the 3-axis digital compass provides reliable navigation underwater.
Combine it all with up to 30 hours of dive time on a single charge, and you have a companion ready for every adventure — from local reefs to remote expeditions.
Garmin Descent™ X30 Pros & Cons
Pros
- Bright 2.4″ color display with large, glove-friendly metal buttons.
- Eco-friendly design using recycled ocean-bound plastics.
- NDL Aware™ metrics for smarter dive planning and extended bottom time.
- Supports single and multi-gas profiles including trimix.
- Surface GPS and 3-axis compass enhance navigation accuracy and safety.
Cons
- No air-integration capability — tank pressure monitoring not supported.
- Battery life (30 hours) shorter than higher-end Garmin dive models.
- Display brightness may reduce runtime on extended dive days.
- Limited smartwatch functionality compared to Mk2i series.
Related Underwater Gear Categories:
- Extensive Collection of Scuba Equipment
- Comprehensive Range of Garmin gear
- Wide Array of Dive Computers
- Dive Travel Packages with Bluewater Dive Travel
Garmin Descent™ X30 Specifications
| What You’ll Love | |
|---|---|
| Display Type | LCD (color) |
| Water Rating | Dive (100 m) |
| General | |
| Strap Material | Silicone (hinged dive band) |
| Lens Material | Chemically strengthened glass |
| Bezel Material | Fiber-reinforced polymer |
| Case Material | Fiber-reinforced polymer (recycled ocean-bound plastics) |
| QuickFit® Band | Yes (26 mm); bungee mount compatible |
| Physical Size | 78.7 × 61.8 × 24.7 mm; band fit 140–360 mm |
| Weight | 160 g (no bands) / 198.2 g (with bands) |
| Leakproof Buttons | 4 large inductive metal buttons |
| Display Size | 2.4" diagonal |
| Resolution | 320 × 240 pixels (RGB) |
| Color / Large Font | Yes / Yes |
| Battery Type | Lithium-ion |
| Battery Life | |
| Medium Brightness (default) | Up to 30 hours |
| High Brightness | Up to 10 hours |
| Night Dive | Up to 47 hours |
| Charging Method | Garmin proprietary clip charger |
| Memory / History | 4 GB |
| Clock & Utilities | |
| Time / GPS Time Sync | Yes / Yes |
| Automatic DST | Yes |
| Stopwatch / Sunrise-Sunset | Yes / Yes |
| Sensors & GNSS | |
| GNSS | GPS, GLONASS, Galileo (surface use) |
| Compass | 3-axis digital |
| Gyroscope / Accelerometer | Yes / Yes |
| Thermometer / Ambient Light | Yes / Yes |
| Depth Sensor | Yes |
| Smart Features | |
| Connectivity | Bluetooth®, ANT+® |
| Smart Notifications | Yes (iPhone® & Android™) |
| Text Reply / Reject (Android) | Yes |
| Weather / Settings Sync | Yes / Real-time (Garmin Connect™ & Garmin Dive™) |
| Passcode | Yes |
| Diving | |
| Max Operating Depth | 100 m |
| Dive Profiles | Single-gas, Multi-gas, Gauge (trimix supported) |
| Decompression Model | Bühlmann ZHL-16c (gradient factors) |
| Gas Mixes | Air, Nitrox, Trimix (up to 100% O2) |
| PO2 / Conservatism | Up to 2.0; low/med/high or custom GF |
| NDL Aware™ Metrics | Real-time NDL impact from depth changes |
| Auto Start/End & End-Dive Timeout | Yes; 20 s to 10 m |
| Stops | Safety stop off/3/5 min; deep stops (custom GF) |
| Ascent/Descent Rate Indicator | Yes |
| Altitude / No-Fly | Auto adjustment / Yes |
| Dive Planner | Basic NDL + multi-gas deco planner |
| Backlight | Configurable intensity; always on |
| Surface GPS | Auto-saves entry/exit; waypointing |
| Dive Log / App | Stores all dives; syncs to Garmin Dive™ |
| Custom Data Screens | Yes (up to 3 fields/page) |
| Alerts & Alarms | Audible & vibration (rate, PO2, CNS/OTU, NDL, deco, gas switch); up to 40 triggers/mode |
| 3-Axis Dive Compass | Heading lock; 90R/90L/reciprocal; bearing back |
| Missed Deco / RTL Reset | Lockout (can disable pre-dive) / Surface reset with acknowledgement |
| Surface Status Widget | SI, N2/He loading, CNS, OTU, tissue status |
| Water Temperature | Yes (find the thermocline) |
| Surface Interval Tracking | Yes |
| InReach® Compatibility | With inReach + dive case (SOS above surface) |
| Navigation, Outdoor & More | |
| Point-to-Point / Reference Point | Yes / Yes |
| Explore Nearby / Distance to Dest. | Yes / Yes |
| GPS Coordinates | Yes |
| Dual Grid Coordinates | Yes (tactical) |
| Boating | Built-in barometer; downloadable tide tables |
| Training & Analysis | GPS speed & distance; activity history; touch/button lock |
What's In the Box
- Descent X30 dive computer with hinged silicone dive band
- Charging clip/cable
- Screen protector kit
- Documentation
Why Buy from Bluewater
- Authorized Garmin dealer — full manufacturer warranty.
- Founded and staffed by active divers and explorers.
- Hands-on experience with the gear we sell.
- We test gear before we recommend it.
2. Risk-Free Purchase (See Terms Of Service)
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- Free U.S. shipping over $200 for Photo Gear & $50 for Dive Gear.
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4. Extra Value at No Extra Cost
- Lifetime product support by email, phone, or in-store.
- Setup help & usage tips tailored to you.
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5. Social Proof & Community
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6. Personal Connection
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We offer lifetime support with all purchases.
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