Key Takeaways
1. The Garmin Descent X50i dive computer has been updated to system software version 4.05, improving functionality since the last update in July 2025.
2. New features include Weather & Tides apps, Notifications, Garmin Share support, and a vertical screen rotation option.
3. Enhanced dive metrics with NDL Aware Depth Metrics and low battery warnings added to the pre-dive checklist.
4. Users can now monitor system alerts, including improved low tank pressure alerts and logged battery stats during dives.
5. The update has been rolled out to at least 50% of users, with options to download via the Garmin Dive app, Garmin Express, or directly on the watch.
The Garmin Descent X50i high-end dive computer has just got a new update, system software 4.05. The last time this device was updated was in July 2025, when they released version 3.18, which improved the touch controls.
New Features Added
With the latest update, new apps for Weather & Tides and Notifications have been introduced. The device now allows Garmin Share support, and users can rotate the screen vertically, changing the control buttons to the top instead of the bottom. Additionally, new NDL Aware Depth Metrics in the dive fields give divers more detailed insights, and they can receive low battery warnings on the pre-dive checklist. Moreover, the battery level of a linked inReach device can now be displayed in the status bar, and battery stats can now be logged during a diving activity.
Enhanced User Experience
Users of the Descent X50i can now oversee system alerts through the device’s settings, with improvements made to critical low tank pressure alerts. Garmin has also addressed various bugs related to travel gas in the dive plan, the compass not clearing as it should, and issues with cut-off dive charts. You can check out the full change log for system software 4.05 below.
In a post on the Garmin Forum, a company representative mentioned that system software version 4.05 has been rolled out to at least 50% of Descent X50i users (currently $1,499.99 at Amazon). It’s still uncertain when the rollout will finish. Users can download updates for their device using the Garmin Dive app, Garmin Express on a computer, or directly on the watch by navigating to PREV > Settings > System > Check for Updates.
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