Polar Grit X
Polar Grit X
Polar Grit X
Polar Grit X
Polar Grit X
Polar Grit X
Polar Grit X
Polar Grit X
Polar Grit X
Polar Grit X
Polar Grit X
Polar Grit X

Polar Grit X


Tax included.
+Product Features



Hill Splitter™

Hill Splitter™
Get detailed data about your performance on the uphill and downhill sections of your session.


FuelWise™ smart fueling assistant
Learn to refuel and maintain adequate energy levels during your long sessions. LEARN MORE

Route guidance

Route Guidance & planning with komoot
Upload your route to your Polar Grit X and stay on the right path with real-time guidance. Plan your route on Komoot, import it to your Polar Grit X and let the turn-by-turn guidance take care of navigation for you.
Advanced wrist-based heart rate
Advanced wrist-based heart rate
Polar Grit X tracks heart rate with the Precision Prime™ sensor fusion technology.
Check current weather info and a 2-day forecast straight on your watch.
FitSpark™ training guide
FitSpark™ training guide
Polar Grit X and the FitSpark™ training guide make sure you’re prepared for your pursuit to conquer the trails with ready-made daily workouts that match your recovery, readiness and training history. LEARN MORE
Nightly Recharge™
Nightly Recharge™
See how well you recover from your day during the night. LEARN MORE
Running Power
Running Power
Get more comprehensive insight into the intensity of your running sessions. LEARN MORE

Energy sources

Energy sources
See how your body uses different energy sources during a training session. Polar Grit X divides your energy usage into carbs, proteins and fats.



Weekly Training Summary

Weekly training summary
Easy access to your weekly training stats, history and plans, straight on your watch.

Running Performance Test

Running Performance Test
The Running Performance Test helps you keep track of your progress and personalise your heart, speed and power zones. LEARN MORE.

Swimming metrics

Swimming metrics
Polar Grit X automatically detects your heart rate, swimming style, distance, pace, strokes and rest times. Distance and strokes get tracked also in open water swimming.

Power based Targets

Power based Training Targets
In Polar Flow you can create training targets based on power.

Sport profiles

Sport profiles
Polar Grit X supports over 130 different sports. Add your favorite sports to your sports watch in Polar Flow.

Music Controls

Music Controls & Phone notifications
Easily navigate around your playlist and adjust volume straight on your watch. Stay connected with notifications from your phone. Get alerts for incoming calls, messages, emails, calendar events and more.


Compass in Training Mode
Compass in training mode when added to the sport profile display.

Heart Rate share

Heart rate sensor mode
With the heart rate sensor mode you can use your wrist unit to track your heart rate and transfer live heart rate data to other Polar products such as cycling computers, or compatible gym equipment, apps and other devices via Bluetooth.

Sleep Plus Stages™

Sleep Plus Stages™
Follow your sleep stages and get insights to your sleep quality. LEARN MORE

Serene™ breathing exercise

Serene™ breathing exercise
Relax your body and calm down your mind with the help of a guided breathing exercise. LEARN MORE


Plan your training

Plan all your training from individual workouts to full season plans.

Analyse your results

Get to the heart of your performance with the extensive training analysis tools.

Share with your coach

Share your training data with your coach or PT with the free Polar Flow for Coach service.

Get social

Share your highlights, join groups and let the Polar Flow community help you on your way to your goals.


Connect with online sports communities

Nike+ Run Club


46 x 46 x 13 mm


64 g with wristband, 44 g without wristband.


Extreme high strength stainless steel case (with DLC coating on black color version). Glass fiber reinforced polymer back cover.


Always-on color touch display. Laminated Gorilla glass lens with anti-fingerprint coating, protected with forged stainless steel bezel with lugs. Size 1.2”, resolution 240 x 240.


346 mAh Li-pol battery. Battery life up to 40 h in training mode (GPS and wrist-based heart rate) or up to 7 days in watch mode with continuous heart rate tracking. Multiple power save options available.

GPS & Barometer

Integrated GPS, GLONASS, Galileo, QZSS. Assisted GPS for fast fix times. Barometric altitude, incline, ascent and descent.**


Bluetooth Low Energy. Custom USB cable for charging and data synchronization.


Time and date. Alarm with snooze.

UI languages

English, German, French, Italian, Dutch, Norwegian, Spanish, Portuguese, Swedish, Finnish, Danish, Polish, Russian, Turkish, Indonesian, Czech, Japanese, Chinese (simplified)


Compatible with all standard BLE heart rate sensors and running cadence and power sensors as well as cycling speed, cadence and power sensors.


Durable and comfortable silicone.

S: wrist circumference 130-190 mm
M/L: wrist circumference 145-215 mm

Compatible with standard 22 mm quick release watch bands.


Operating temperature: from -20° to 50°C. Temperatures below -10°C may affect battery life and performance.

Tested against military standards (MIL-STD-810G).

Water resistance

Waterproof (WR100)


Magnetometer-based compass available in training mode (no GPS needed).


  • Polar Grit X outdoor multisport watch
  • Charging cable
  • User manual
  • Information note

*In some sports we recommend a heart rate chest strap for optimal accuracy. Read more about wrist-based heart measurement HERE