Polar Grit X Pro: Two New Outdoor Sports Watches Worth a Close Look

Introduction

Polar’s new Grit X Pro line sits at the top of the brand’s outdoor watch range, arriving in two versions: the standard Grit X Pro starting at $499, and the Grit X Pro Titan at $599. The Titan edition swaps in a titanium case that is about 12% lighter than the standard version and adds a leather band. Both share the same core feature set, which is a meaningful shift for Polar: the Grit X Pro now matches the higher-end Vantage V2 on features, with the differences coming down to materials and price.

This overview covers the biggest new features, how they work in practice, and what accuracy looked like in real workouts.

What’s New: The Headline Features

The Grit X Pro adds a long list of newness, but a handful of changes stand out: expanded routing tools, a new elevation profile during workouts, music controls, new dashboard views, heart rate broadcasting, additional fitness tests, and sapphire glass for better scratch resistance.

Expanded Routing and In-Workout Navigation

Once you select a sport mode and choose a route, the watch plots a breadcrumb trail and shows the route’s elevation profile before you start. You can also add hydration and nutrition reminders right there, then choose whether to load the route from the start point or the midpoint.

During a workout, a new elevation profile chart shows total upcoming elevation gain and descent, with your position moving along the profile and completed sections graying out. This behaves a bit inconsistently in practice; in some cases it grays out properly, in others it simply shows the full profile for the entire workout. It seems likely tied to the route source, and hopefully something that gets sorted out quickly.

Routing mid-activity is where things get genuinely flexible. You can end route guidance and pick a new route, or choose from three ways back to the start: reverse the planned route from wherever you are, track back along the exact path you came, or go direct as the crow flies. All of these still show the route elevation profile, since they are known routes with elevation data.

Music Controls and New Dashboard Views

Music control arrives from the workout screen or the general dashboard view, letting you pause, skip tracks, and adjust volume for any media playing on your phone. It worked smoothly with a music streaming app in testing, and it controls any media on the phone, not just music apps. There is still no onboard music storage on the Grit X Pro; only one older Polar watch offers that, so this is strictly a phone-control feature.

Two new dashboard views round out the update. A daylight view shows dusk, dawn, and the light portions of the day, and tapping into it reveals sunset and dusk times, tomorrow’s dawn and sunrise times, and total daylight hours for the day. A second view bundles an altimeter, a magnetic compass you can rotate and lock, and GPS coordinates, with the last known GPS location and a refresh option, plus altitude history over the last six hours and calibration options for both the altimeter and compass.

Heart Rate Broadcasting and New Training Tests

A new heart rate sharing feature broadcasts your optical heart rate to third-party apps and devices. From a sport mode menu, you select share heart rate with other devices, add a new device, and search for it as a Bluetooth smart heart rate sensor in the receiving app. Used with an indoor training platform in a workout, it paired cleanly and ran without real problems, aside from a small mismatch at the very beginning and end of the session.

The test menu has also grown substantially. Beyond the existing fitness test, you now get an orthostatic test, a leg recovery test, a cycling test, and a running test. The running test is essentially a VO2 max effort where you run progressively faster, while the cycling test is a proper FTP test rather than a ramp test, which most riders now let their training platform estimate automatically instead. The leg recovery test is the more interesting addition: it has you jump a few times, measures jump height, and estimates whether your legs are recovered, something software platforms cannot easily replicate.

Recovery Pro, previously limited to the Vantage V series, is also here. The watch defaults to the Nightly Recharge setting, which gives a daily recovery status, but you can switch to Recovery Pro, which asks you to run a test several times a week with a chest strap for a deeper recovery read.

Accuracy: Heart Rate and GPS

On the optical heart rate side, indoor workouts matched a chest strap and other sensors within reasonable accuracy, with no problems on either an indoor training platform session or a studio cycling workout. Outdoors was more mixed. Readings were relatively close most of the time but occasionally a bit unstable during warm-ups and short recovery periods between hard intervals, echoing the behavior of the previous Grit X and Vantage V2, which use the same sensor. For short 30 to 60 second intervals, some were missed entirely while most captured the general gist. The practical answer: pair a chest strap for that kind of workout and let the watch broadcast or receive from it.

GPS accuracy was mostly good with a few small bobbles. On some runs the track drifted slightly off from comparable watches for brief stretches, yet nailed more difficult portions without issue. In tree cover it was good by and large, with one section off by roughly 15 to 20 meters. Not a major concern, but not quite as sharp as some competing units.

Build, Display, and Backlight

The new unit adds sapphire glass, which looks virtually identical to the previous model but is more durable against scratches, likely one reason for the price increase from the older Grit X’s $429 to $499 and $599 for the Titan edition. A new backlight brightness option changes behavior so the backlight only turns on when you press the light button, rather than on any button press.

General visibility is okay rather than exceptional. Indoors it can sometimes be a little hard to see, but outdoors in rain or darkness it performed without problems.

What Comes to Older Polar Watches

Polar has also confirmed how these features roll back to existing watches. The Vantage V2 gets essentially everything on October 20th via firmware update, mostly because many of these features originally came down from the V2. The original Grit X gets a large list as well, minus the cycling, leg recovery, and orthostatic tests, the reverse route features, and the elevation profile both before and during workouts.

The bigger picture: Polar has effectively closed the feature gap between the Grit X Pro and the Vantage V2. Previously the Vantage V2 held a feature advantage but with a more plasticky look, while the Grit X was the better-looking watch. Now both share the same feature set, so the choice comes down to whether you want to pay more for fancier materials or get the same features at a lower price point.

Conclusion

The Grit X Pro line makes a simple, appealing pitch: identical features across both models, with the Titan edition adding a lighter titanium case and a leather band for those who want premium materials. The expanded routing tools and heart rate broadcasting are genuinely useful for trail and indoor training use, while optical heart rate on short outdoor intervals remains best paired with a chest strap. If you want the top of Polar’s range and like the design, either version delivers the same feature set; the Titan simply dresses it up.