Polar OS 5.0 Tested: Dark Maps, RPE, and New Widgets

Polar OS 5.0 is now rolling out across four watches: the Vantage V3, Grit X2, Vantage M3, and Ignite 3. This is a software update, not new hardware, so if you already own one of those devices you get the upgrades for free.

The headline addition is dark mode maps. If you run or ride at night, this matters more than it sounds. Bright white map backgrounds are genuinely distracting in low light, and Garmin has had dark map options on its Fenix and Epix lines for a while now. Polar is catching up, and it works.

RPE grading is the other big one. Rate of Perceived Exertion built into the watch interface means you can log how hard a session felt right from your wrist, without touching your phone. Paired with Polar's existing heart rate and training load data on the Vantage V3, that gives you a more complete picture of recovery and readiness. Whoop has leaned on subjective strain data for years. Polar is now pulling in that same logic at the device level.

Flashlight options are new for supported models, and new widgets round out the update. Widgets sound minor, but quick-glance data access during training blocks is exactly where Coros and Garmin have had an edge in daily usability. Polar closing that gap is a practical win for athletes who live in the app between sessions.

Solid update. Not a reinvention, but the kind of polish that makes a good watch easier to live with every day.