The X50i combines powerful technology and user-friendly design to ensure you have all the essential information at your fingertips. The vibrant 3-inch color display lets you view DiveView maps, projected ascent profiles, and in-dive depth charts with ease, ensuring critical information is accessible at a glance, even in challenging underwater conditions. The Descent X50i includes mixed-gas decompression technical diving functionality in a premium large format dedicated dive computer.

Once underwater, the Bühlmann ZHL-16C decompression algorithm with user configurable Gradient Factors allows individual control of your dive computer decompression calculations and stop depths. Full color graphics plus tone and vibration alerts help keep you informed while you’re submerged. During a decompression dive, the Descent can provide time-to-surface based on "look ahead" at planned gas switches along with current ceiling and stop time. Multiple gas definition presets are supported with any combination of air, nitrox, trimix and oxygen. For technical dives, the Descent is user configurable to NOT "lockout" after a missed stop.

The Descent X30 is an easy-to-use large screen premium dive computer dedicated exclusively to SCUBA diving, unlike the Garmin smartwatch models that have a pulse oximeter and include support for other sports and fitness applications. On land, the X30 does include support for pinpoint navigation and topographic mapping (on the surface only) using both GPS and GLONASS satellite signals. Thanks to built-in Bluetooth, it supports notifications from a paired smartphone. It's also Wi-Fi enabled to connect and automatically send activity uploads, including your dive logs, for review or sharing on Garmin Connect.

Diving Features, Functions and Alerts Highlights:

• Decompression dive computer with {3.0 inch | 7.6 mm} diagonal LCD color 640x360 pixel display in a wrist mount dive computer.
• Built-in sensors include depth, temperature, 3-axis compass, gyroscope, ambient light
• Supports open-circuit single-gas, multi-gas, closed-circuit rebreather (CCR), and gauge modes
• Plan your dives directly on the device, including planned deco with gas switches
• Supports a bottom gas plus up to 5 decompression/backup gas mixes including air, nitrox, trimix and 100% oxygen
• Bühlmann ZHL-16c algorithm with configurable Gradient Factors
• GF presets for sport diving NDL safety factor: High = 35/75, Medium = 40/85, Low = 45/95
• Depth rated to { 660 fsw | 200 msw }, designed to comply with EN13319
• Various alerts (tone, vibration, display) for:
  
  
  • CNS Warning >= 80% and CNS Critical >= 100%
  • OTU Warning >= 250 and OTU Critical >= 300
  • NDL Warning >= 80% of inert gas limit and NDL Exceeded
  • PO2 Low < 0.18 ATA (suppressed first two minutes of dive)
  • PO2 High and PO2 Critical (user configurable up to 2.0 ATA)
  • Ascent rate fast >= {30 fpm | 10 mpm} for >= 10 seconds
  • Gas switch suggested (based on enabled gas list and selected switch PO2)
  • Approaching deco stop, deco stop completed and all deco complete
  • Depth Ceiling violation if above ceiling by {2.0 ft | 0.6 m}
  • Multiple user configurable depth and runtime alerts
  • User configurable safety stop
  • User configurable units: imperial (feet, psi) or metric (meters, bar)
  • Battery Low < 20% and Battery Critical < 10%
• Missed deco lockout can be disabled prior or post dive with user acknowledgement
• On device dive log with event marks lets you store and review data from up to 200 dives
• Store and share unlimited dive log online via Garmin Connect™ and its included mobile app
• Set GPS location marks at the surface on entry and exit.
• Battery life: Varies depending on features enabled - up to 30 dive hours.
• Construction material is a fiber-reinforced polymer body with sapphire crystal lens
• Dual elastic nylon wrist bands with adjustable locking buckles. Provision for option bungee cord mounting (bungee not included.) Also, accepts Garmin 20 mm Quick-Fit silicone wrist bands (not included, two required.)
• Physical size is: {2.56 x 3.87 x 0.96 inch} or {62.4 x 98.3 x 24.5 mm}

What's in the box? - The box contains the Garmin Descent X30i dive computer with dual elastic nylon wrist bands with adjustable locking buckles, band removal tool and carrying case, along with a charging cable and quick start guide. If you want a well padded case suitable for boat use, consider adding the optional DGX Padded Storage Bag.