Polar Grit X

Feature Highlights

Hill Splitter

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. 

Running Power

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.  

Route guidance

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.

Energy sources

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.

Nightly Recharge™

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.

Sport profiles

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. 

Swimming metrics

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.

Phone notifications

Keep connected with notifications straight to your watch face from your phone. Receive alerts from emails, incoming calls, calendar events, messages and more.

Weather

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.

Running Index

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.

Running Program

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.

Smart Calories

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.

Training Benefit

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.