Polar Grit X2 Pro

The Polar Grit X2 Pro is the larger and more heavily armoured of Polar's two Grit X2 outdoor watches, and it combines an AMOLED touchscreen, a sapphire crystal and dual-frequency GPS in one stainless steel case. The Finnish company announced it on 20 March 2024 in Kempele, took pre-orders on its own web shop until 2 April and opened general sales on 3 April 2024. The launch price was listed as 749.90 in both euros and US dollars. This page is a specification-and-information review based on the published specifications and manufacturer information, so every durability, accuracy and battery figure below is Polar's own claim rather than a measurement made here. The sections cover where the watch sits in the range, design and display, navigation, sensors and training, battery, who it suits and the compromises.

Place in the lineup

Polar builds its outdoor watches under the Grit X name. The Grit X2 Pro is the flagship of that family, with an AMOLED panel, a stainless steel case and the Polar Elixir sensor package. In 2025 Polar added the Polar Grit X2, which is the compact sibling: a 1.28-inch screen, a 44.7 mm case, a plastic body with a stainless steel bezel and a lower weight. The Pro is therefore the version for people who want the biggest screen, the all-steel case and the longest list of durability claims, while the standard Grit X2 is the lighter choice for smaller wrists. A second variant, the Grit X2 Pro Titan, swaps the stainless steel front casing for aerospace titanium and ships with an additional leather wristband with a cork lining. Polar's own multisport watch, the Polar Vantage M3, is a different kind of product, presented by Polar as a multisport watch for athletes who train in several disciplines. For a side-by-side view of the two outdoor models see Polar Grit X2 Pro vs Polar Grit X2.

Design, build and display

The case measures 48.6 x 48.6 mm and is 13.4 mm thick. Polar lists a total weight of 79 g with the standard silicone wristband and 57 g without it, which makes this a substantial watch by running-watch standards but not unusual for a rugged outdoor model. The case and bezel are stainless steel, the screen is protected by sapphire crystal glass, and the watch uses the standard 22 mm quick-release wristband fitting, so the Polar 22 mm wristbands listed as compatible accessories can be fitted. Polar states that the watch is built to the MIL-STD-810H standard, which covers conditions such as high altitude, low pressure, high and low temperatures, immersion and corrosion, and it carries a WR100 water-resistance rating with an operating temperature range of minus 20 to plus 50 degrees Celsius. Standard colours are Night Black and Stone-Gray.

The display is a 1.39-inch AMOLED touchscreen with 454 x 454 pixels, which Polar quotes as 326 pixels per inch and as 15 percent larger than earlier Grit X screens. The extra area is used for denser data pages, larger map views and a new bold retro digital watch face. An always-on option and an ambient light sensor are listed on the product page. The watch combines a touchscreen with physical buttons, which is a sensible pairing for a device meant to be used outdoors, although this page cannot say how well either input works in the cold or with gloves.

Navigation and mapping

Navigation is the main reason to choose a Grit X2 Pro over a simple running watch. The watch has dual-frequency GPS with a redesigned signal-boosting antenna, and it can use GLONASS, Galileo, BeiDou and QZSS as well. Polar's maps are stored on the watch: Europe and North America come preinstalled, with detail such as buildings, parks, main roads, streets and waterways, and more detailed regions with contour lines can be downloaded for free through the Polar Flow service. The watch has 32 GB of storage for maps, routes and training data. Route tools include Breadcrumbs, a feature that records the path you take so you can retrace it, plus Track Back, Back to Start, planned routes with elevation profiles, points of interest, coordinates and daylight times. Turn-by-turn directions are powered by komoot and routes can be synced from Strava.

These tools are useful, but they are not identical to what the very large map ecosystems offer: the preinstalled coverage is limited to two continents, and other regions must be downloaded before you rely on them. Anyone planning a trip outside Europe or North America should check the available downloads first.

Sensors, health and training

The Grit X2 Pro is built on Polar Elixir, the company's sensor platform. It combines a fourth-generation optical heart rate sensor with a wrist-based ECG measurement, SpO2 readings and nightly skin temperature tracking, and the watch also has a barometer, a magnetometer compass, an accelerometer and a gyroscope. On top of that sits Polar's familiar software layer: Training Load Pro, Recovery Pro, Nightly Recharge, SleepWise, FitSpark daily training guidance and the FuelWise fuelling assistant, together with tests such as the running performance test, the fitness test, the orthostatic test and the leg recovery test. For outdoor sports there are vertical speed, average ascent speed (VAM), 3D speed, the Hill Splitter and wrist-based running power. A built-in flashlight is another practical extra. The data can be viewed and analysed in the Polar Flow app, and the watch can also act as a heart rate sensor for other devices.

It should be noted that the health tools are wellness and training aids; Polar describes them in that way, and they are not substitutes for medical advice. The ECG function in particular is a feature to understand, not a diagnosis.

Battery and charging

Battery figures differ depending on which Polar page is read. The launch announcement quoted up to 140 hours in eco training mode, up to 43 hours in performance training mode and up to 10 days in smartwatch mode. The current product page lists 110 hours, 40 hours and 11 days, and gives the battery as a 488 mAh Li-Pol cell. The reasonable reading is that the product page reflects the most recent test settings, so this page uses it, but anyone comparing against other watches should remember that these are manufacturer lab figures that depend on GPS settings, screen mode and sensor use. The watch charges through a proprietary cable with a USB-C end, and it can continue to record while it is charging.

Who it is for

The watch suits trail runners, hikers, mountaineers and people in demanding professional roles who want a large, readable AMOLED display, sapphire glass and offline maps without the very high price of a titanium multisport flagship. It also appeals to users who care about Polar's recovery and sleep analysis more than a long list of smartwatch apps. At 749.90 on launch it was a premium product, and the Titan edition cost 869.90 in the launch announcement. Polar also offered a bundle with the H10 chest strap for 799.90.

If you mostly train on roads or in the gym, a model such as the Polar Vantage M3 may fit better than an expedition-style watch. The rankings page shows how the watches in the database compare on key figures.

Compromises to consider

• Size and weight: 13.4 mm thick and 79 g with its band, it can feel large on a slim wrist and during sleep tracking.
• Battery claims moved: the launch figures and the later product-page figures differ, so treat the numbers as approximate.
• Smart features: Polar lists music controls, phone notifications and weather, but the feature list is centred on training and navigation, and the watch is not positioned as a replacement for a full smartwatch.
• Maps: only Europe and North America are preinstalled.
• Price: a premium price for a watch whose strengths are durability and navigation rather than breadth of apps.

In summary, the Grit X2 Pro is a large, tough and well-equipped outdoor watch whose main limits are its weight and its modest smart features. It is best treated as a reliable tool for exploration and training rather than as an everyday fashion watch.