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Polar OS 5 update brings new features to Polar Vantage M3, Grit X2 Pro and other smartwatches

The update to Polar OS 5 is now available on five different smartwatches (Image source: Polar)
The update to Polar OS 5 is now available on five different smartwatches (Image source: Polar)
The Polar Vantage M3, Grit X2 Pro, Ignite 3 and two other smartwatches are receiving a major firmware update to Polar OS 5. The latest operating system offers new widgets as well as numerous convenience features and improvements.

Polar has started rolling out the Polar OS 5 update to a total of five different smartwatches, including the Polar Vantage M3, Grit X2 Pro and the Ignite 3 (from $305 on Amazon). As usual, it may take several days before the update is available to all users of these smartwatches. The following software versions are currently being rolled out:

  • Polar Vantage M3 (v5.0.12)
  • Polar Vantage V3 (v5.0.13)
  • Polar Grit X2 (v5.0.12)
  • Polar Grit X2 Pro (v5.0.13)
  • Polar Ignite 3 (v5.0.12)

The smartwatch update primarily introduces convenience features. With Polar OS 5, it is now possible to set multiple alarms directly on the smartwatch, and watch faces get a night mode. As long as the "Do Not Disturb" mode is enabled, the display only lights up a bit when a button is pressed, while some watch faces can now show a more minimalistic time format. Moreover, a new chart can display the blood oxygen saturation over time.

Maps are now available in dark mode
Maps are now available in dark mode
Polar OS 5 introduces new widgets
Polar OS 5 introduces new widgets
Data from the SpO2 sensors can now be displayed as a graph
Data from the SpO2 sensors can now be displayed as a graph

The maps app is getting a dark mode to make it easier on the eyes. Polar OS 5 further introduces two new watch face widgets or complications that provide insight into sleep quality from the previous night and activity from the past week. When the smartwatch is connected to a charger, it can now show the current time.

Polar OS 5 asks users after a workout how strenuous it was, while a rating from 1 to 10 helps the smartwatch adjust the next workout to the user’s performance. Additionally, Polar resolved an issue that could cause iPhone notifications to show up multiple times, and performance when zooming in the maps app has also been improved. 

Multiple alarms can be set after the update
Multiple alarms can be set after the update
The time is shown during charging
The time is shown during charging
Watch faces get a night mode
Watch faces get a night mode

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2026 01 > Polar OS 5 update brings new features to Polar Vantage M3, Grit X2 Pro and other smartwatches
Hannes Brecher, 2026-01-20 (Update: 2026-01-20)