Garmin Descent MK50i
The ocean has an incredible way of inviting us back time and time again! For those of us who accept the invite, the Descent X50i dive computer is an absolute must-have. Its sleek 3" color touchscreen makes it a breeze to check your DiveView™ maps, depth chart, and other crucial info when you're deep below the surface. This incredible device is built to last, featuring a sapphire lens, leakproof buttons, and a 20 ATM rating—perfect for some truly unforgettable dives! And there's even an integrated backup light for those moments when the visibility is on the low side.
But what really sets this device apart is the incredible SubWave™ sonar system! It enables diver-to-diver messaging and monitors the tank pressures and depths of up to eight divers within 10 meters when paired with the optional Descent™ T2 transceiver. This is a great feature for dive guides to ensure the safety of their group. With multiple dive modes, air integration, and features tailored to a variety of diving styles, it's the perfect companion for all your adventures.
Whats new?
3” Color Touchscreen Display

Air Integration

SubWave Sonar Networking

DiveView Maps

Dynamic Depth Chart

Build for new Depth

Dive Log

Surface GPS and Navigation

Integrated Backup Dive Light

Feature | DESCENT MK3/MK3i 43 MM | DESCENT MK3i 51 MM | DESCENT X X50i |
---|---|---|---|
Case Size | 1.69" x 1.69" x 0.56" | 2.01" x 2.01" x 0.65" | 2.46" x 3.87" x 0.97" |
Display Size | 1.2" diameter | 1.4" diameter | 3.0" diagonal |
Display Type | Color, AMOLED, touchscreen | Color, AMOLED, touchscreen | Color, LCD, touchscreen |
Display Resolution | 390 x 390 pixels | 454 x 454 pixels | 640 x 360 RGB |
Weight | 2.56 oz (MK3) 2.94 oz (MK3i) | 3.73 oz (silicone band) 5.85 oz (titanium band) | 9.88 oz (with band and buckles) |
Lens Material | Sapphire crystal | Sapphire crystal | Sapphire crystal |
QuickFit™ Watch Band Compatible | 0.79" | 1.02" | 0.79" |
Strap Material | Silicone | Silicone or titanium | Elastic nylon with adjustment locking buckles |
Battery Life | Smartwatch: up to 10 days GPS: up to 28 hours Dive mode: up to 30 hours | Smartwatch: up to 25 days GPS: up to 76 hours Dive mode: up to 66 hours | 16 hours in medium backlight (default) 13 hours in high backlight 20 hours in night dive (low backlight) |
Water Rating | Dive (656 ft) | Dive (656 ft) | Dive (656 ft) |
Air Integration | Up to 8 tanks with Descent™ T2 (MK3i only) | Up to 8 tanks with Descent T2 | Up to 8 tanks with Descent T2 |
SubWave™ Sonar Networking | Up to 32 ft | Up to 32 ft | Up to 32 ft |
Diver-to-Diver Messaging | Up to 98 ft | Up to 98 ft | Up to 98 ft |
Built-in LED Flashlight | • | • | • |
Dynamic Depth Chart | • | • | • |
DiveView™ Maps | • | • | • |
Tide Data | • | • | • |
Smart Notifications | • | • | • |