"With its rugged design, power save options and detailed route planning the Grit X is designed for long distance sports enthusiasts who like going off grid."
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With its rugged design, power save options and detailed route planning the Grit X is designed for long distance sports enthusiasts who like going off grid.
Analyse your performance for each individual hill to analyse your ascent and descent skills. Get important insights on your ability to use different energy sources and guidance on mid-session fuelling to improve your endurance capabilities.
Wrist-based power allows you to measure your performance more accurately, allowing you to train smarter.
The Grit X is tailor-made for extended bouts in tough conditions whether it be cross country or trail.
Grit X automatically detects uphill and downhill sections giving detailed performance insights without needing to take laps manually so you can attack each hill better.
Wrist-based power measurement means you don’t need a foot pod or power meter. Take your performance to the next level by tracking your power output, managing your training load and setting your threshold zones.
FuelWise smart fuelling assistant
FuelWise analyses your individual metrics and session intensity to calculate your optimal carbohydrate intake and provides fuel reminders. Manual intervals can also be set to suit your needs.
Upload or follow previous routes with real-time guidance keeping you on track. See what distance you have during your session to pace yourself better.
Route planning with Komoot
Plan or copy other routes in Komoot and import them to your Grit X and receive turn-by-turn guidance.
See your protein, carbohydrates and fats usage each session and how different intensities affect energy usage. Track and train your body’s ability to use specific energy sources so you can go further.
Strava Live Segments
Get alerts on nearby Strava Live Segments to compete with others on your runs or rides. See real-time performance data and check your results right after you finish.
Advanced wrist-based heart rate
Precision Prime sensor fusion technology sets a new standard for accurate heart rate measurement giving you reliable data to work with.
Grit X analyses the quality of your sleep and the activity of your Autonomic Nervous System (rest and digest system). Guidance on your recovery state and personalised tips help you manage your training load to prevent overtraining and fatigue.
Polar Grit X supports over 130 different sports to add to your watch giving you the metrics you need.
FitSpark™ training guide
Receive a choice of custom workouts daily. FitSpark guides you through the session and instructs you on how to perform each exercise correctly.
Track your pool progress with automatic detection of your distance, heart rate, pace, rest times and swimming style. Open water activity can also be tracked.
Keep connected with notifications straight to your watch face from your phone. Receive alerts from emails, incoming calls, calendar events, messages and more.
Check current weather data and get a 2-day forecast so you are prepared whatever the conditions.
Training Load Pro
Calculate the stress your workouts are having on your body to find the optimal balance between training and rest. Understand how training is straining your cardio and muscle systems (requires power meter if cycling) so you can use the most effective training load to progress.
After every run get a maximal oxygen intake (V02 max) estimate to see how your running performance is improving. Your Running Index report in Polar Flow helps improve aerobic capacity and estimates your finish times for different distances, keeping you on schedule for your goals.
Get a personal training plan from Polar Flow based on your individual metrics and targets. Your plan continuously adapts as it learns about you, preventing over or undertraining. The programme comes with strength, core and mobility exercises as well as updated predictions of your expected finish time.
Calculate your energy expenditure using your individual data and training session intensity as well as calories burned. Manage your energy intake and expenditure to replenish your energy stores improving your performance.
After each training session receive feedback from Polar Flow on which energy systems and areas of fitness and energy systems you have trained, making your training goal specific.
Sleep Plus Stages
Get a full breakdown of your sleep from individual nights to long term habits. Analysing your three sleep stages allows you to accurately measure and fine tune sleep quality in order to improve your training for that next day.
Serene breathing exercise
Guided breathing exercises help manage cumulative stress, build resilience and improve focus. Biofeedback given in real-time and after the exercise helps release physical and mental tension improving your health and wellbeing.
Measurements: 47 x 47 x 13 mm
Weight: 64 g with wristband, 44 g without wristband.
Materials: Extreme high strength stainless steel case (with DLC coating on black color version). Glass fiber reinforced polymer back cover.
Display: 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.
Battery: 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.**
Connectivity: Bluetooth Low Energy. Custom USB cable for charging and data synchronization.
Watch: 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)
Sensors: Compatible with all standard BLE heart rate sensors and running cadence and power sensors as well as cycling speed, cadence and power sensors.
S: wrist circumference 130-190 mm
M/L: wrist circumference 145-215 mm
Compatible with standard 22 mm quick release watch bands.
Durability: 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)
Compass: Magnetometer-based compass available in training mode (no GPS needed).
LIMITED POLAR INTERNATIONAL GUARANTEE