Suunto Nautic Software Update

Enjoy the convenience of over the air software updates via Suunto app so that your Suunto Nautic always has the latest and greatest software.

Over the air software update

When an update is available and your watch is connected with Suunto app, the software update will be downloaded to the watch automatically.

Once the software is downloaded to your watch, the watch will update itself during the night as long as the battery level is at least 50%.

If you want to install the update manually before it happens automatically during the night, navigate to Settings > General and select Software update.

Release notes

2.49.28

Staged update starting on January 23rd 2026

This update brings new features, improvements and bug fixes.

New Dive features:​

  • Option to define separate units for depth, tank pressure, gas consumption, temperature
  • Possibility to add GF99 and Surface GF value in switch window
  • Option to see a tissue bar graph during dive
  • Option to reset tissues
  • Tide widget

Improvements and bug fixes:

  • Localization fixes
  • Compass bearing gets sometimes stuck
  • Password lock bug fixes
  • Wrong surface time after 48h of inactivity
  • Fixes to visuals regarding decompression stops
  • Helium not taken into account in tissue graph
  • POI’s not working in Map
  • Sidemount alarm not visible in Suunto app
  • Fixes to showing tank pods when offline
  • Ascent speed warning stuck on surface screen
  • Fix timeout time in many menus
  • Unified button hint visuals
  • Compass mils degrees not cantered
  • Fixes to dive planner when diving with algorithm off
  • Fixes to icons in weather widget
  • New certification markings
  • Charging icon and charging state are not shown in dive screen, control panel and power saving screen
  • A new gastime alarm was not shown on list
  • Inconsistency in showing NX100 and NX99
  • The water type in dive summary wasn’t changed when updated in the setting view
  • Fix to gas change from gas menu
  • Device didn’t go to power saving mode from planner views