Polar Grit X Outdoor Multisport GPS Watch

by Polar
Polar Grit X Outdoor Multisport GPS Watch has a rating of 5.0 stars based on 2 reviews.
$429.95

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Product Details

    Features:
  • 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..
  • Polar Grit X comes with built-in GPS, compass and altimeter in training mode, and Polar’s unique Smart Coaching features that make sure you’re ready for your future adventures
  • Always-on color touch display. Laminated Gorilla glass lens with anti-fingerprint coating, protected with extruded stainless steel bezel with lugs Size 1.2”, resolution 240 x 240.
  • Integrated GPS, GLONASS. Assisted GPS for fast fix times. Barometric altitude, incline, ascent and descent

Product Details

Polar Grit X is designed to take you through even the roughest, most epic sessions without clashing with your everyday style.

MILITARY-LEVEL DURABILITY

Polar Grit X has passed several MIL-STD-810G tests, including extreme temperatures, drop and humidity.

LET NOTHING WEIGH YOU DOWN

At 64 grams, Polar Grit X is one of the lightest outdoor multisport watches out there.

GO BEYOND AND BACK

The ultra-long battery life and multiple power save options make sure Polar Grit X won’t let you down even on your longest adventures.


Stay energized throughout your session with the FuelWise™ fueling assistant. FuelWise™ includes three features that remind you to refuel and help you maintain adequate energy levels during your long sessions. These features are Smart carbs reminder, Manual carbs reminder and Drink reminder.

The Smart carbs reminder estimates your refueling need from your estimated session intensity and duration taking your training background and physical details into account, and adjusts the frequency of the reminders on the fly based on the actual intensity of your session. The Manual carbs reminder and Drink reminder are time-based, which means you'll get a reminder at manually chosen preset intervals, every 15 or 30 minutes for example.

Carbohydrates are ideal for fueling because they can be absorbed and converted into glucose quickly, unlike fat or protein. Glucose is the primary source of energy used during training. The higher your training intensity, the more glucose you use in proportion to fat. If your session is shorter than 90 minutes, you don't usually need to fuel with carbs. However, extra carbs may help you stay more alert and focused even during a shorter session.

TRAINING WITH FUELWISE

To perform at your best, you need to maintain adequate energy levels and stay hydrated throughout a long performance. During a long race or training session you need to fuel your system with carbohydrates and drink regularly. With two useful tools, carbs reminder and drink reminder, FuelWise helps you stay hydrated and reminds you to refuel. The reminders can be especially helpful in ultralong competitions when fatigue kicks in and in adventure racing when you may forget to refuel because of other tasks such as navigating.

When planning how to fuel it’s important to remember that every athlete is different, which is why you may need to experiment with different products and portion sizes to find the optimal way for you to fuel. To see how different foods and fluids suit you, try them out during practice and start with small amounts. There are individual differences in how well an athlete’s body can take in carbs during performance. If you’re already familiar with fueling during performance, your body probably does a better job in absorbing the carbs. Digestion rate is always individual and can be improved by practice. If you are a heavy trainer, we assume you've trained your body to take in carbs during training.

Start a session with FuelWise

The FuelWise™ features (Smart carbs reminder, Manual carbs reminder and Drink reminder) are located in the main menu under Fueling.

When using any of these features the training session is started from the Fueling menu. After setting your reminder and choosing Next, you'll be taken straight to the pre-training mode. Choose your sport profile and start your session.

Smart carbs reminder

When using the smart carbs reminder, set the estimated session duration and intensity, and we'll estimate the amount of carbs you'll need for refueling during your session. When estimating your carbohydrate need for refueling, we take your training background and physical settings including age, gender, height, weight, maximum heart rate, resting heart rate, VO2max, aerobic heart rate threshold and anaerobic heart rate threshold into account.

The timing of the reminders depends on the portion size (carbs in grams) of your preferred sports fuel. During training, your watch will track your actual energy expenditure based on your intensity measured by heart rate, and adjust the frequency of the reminders accordingly, but the portion size of your fuel will always be the same during a session.

You should always bring along some extra fuel in case you get more frequent reminders if the duration of your session turns out be a little longer than you anticipated or if your energy consumption is higher than expected. However, note that the purpose is not to cover all the carbs that you use during a session, so don't be puzzled when you look at your stats afterwards and notice that you've used more carbs than you took in. Also, your body always uses fat storages as an energy source in addition to glucose, their proportions just change throughout your session.

Set smart carbs reminder

  1. In the main menu choose Fueling > Smart carbs reminder.
  2. Set the estimated duration of your session. The minimum is 30 minutes.
  3. Set the estimated intensity of your session. The intensity is set with heart rate zones.
  4. Set the carbs per serving (5 -100 grams) of your preferred sports fuel.
  5. Choose Next

After setting the reminder you'll see an overview of your selection. At this point you can still remove the reminder you just set or add a drink reminder. When you're ready to start your session choose Use now to go to pre-training mode.

When adding a drink reminder to a smart carbs reminder, you'll also get an estimation of your hydration need per reminder. This is based on the average sweat rate in moderate conditions (hydration need of 0,4 -0,8 liters per hour).

Take ( ) g carbs! is shown on the display including vibration and sound when it's time to take some carbs.

Manual carbs reminder

Optionally, you can simply set the carbs reminder to repeat at a manually chosen frequency of time with the manual carbs reminder. This could be your choice if you're an experienced endurance athlete who's learned their best fueling practices from experience. If you know from experience what works for you, the manual carbs reminder is most likely the best option for you.

Set manual carbs reminder

  1. In the main menu choose Fueling > Manual carbs reminder.
  2. Set the interval (5-60 minutes) of the reminder.

After setting the reminder you'll see an overview of your selection. At this point you can still remove the reminder you just set or add a drink reminder. When you're ready to start your session choose Use now to go to pre-training mode.

 Take carbs! is shown on the display including vibration and sound when it's time to take some carbs.

Drink reminder

You should drink regularly - not too much at a time - during performance to make sure your body can take in the fluid. To make sure you stay properly hydrated throughout your session, you can set a drink reminder to repeat at a chosen frequency of time, based on external conditions and your own preferences. If the weather is hot and you're up for a high intensity session, you should set more frequent reminders. This is especially important if you’re not used to competing in hot weather.

When you're thirsty, you're already dehydrated, which means your performance level has already dropped. With drink reminder, you make sure you don't forget to drink.

Set drink reminder

  1. In the main menu choose Fueling > Drink reminder.
  2. Set the interval (5-60 minutes) of the reminder.

After setting the reminder you'll see an overview of your selection. At this point you can still remove the reminder you just set or add a carbs reminder. When you're ready to start your session choose Use now to go to pre-training mode.

 Drink! is shown on the display including vibration and sound when it's time to drink.

 

SCIENTIFIC BACKGROUND

Your capability to absorb carbohydrates is estimated from your training background (see the table below), meaning that if you’re an experienced athlete we assume that your familiar with fueling during training. Your training background limits the maximum amount of carbohydrates (grams per hour) that the smart carbs reminder can give you. This data is used to pre-calculate the relationship between your heart rate and carbohydrate consumption rate based on your physical settings (age, gender, height, weight, maximum heart rate, resting heart rate, VO2max, aerobic heart rate threshold and anaerobic heart rate threshold). The recommended carbohydrate intake rate is then adjusted up or down (within min/max limits) based on your heart rate data and the pre-calculated heart rate vs. carbohydrate consumption rate relationship.

 

DISCOVER THE ULTIMATE TRAINING PLATFORM

Polar Grit X goes hand in hand with Polar Flow, the app and web service that keeps all your training, activity and sleep data, plans and progress reports conveniently in one place and at hand whenever you need it.

PLAN AND ANALYZE

Make a training plan for a full season and keep track of your progress with the extensive analysis tools.

SYNC YOUR DATA TO OTHER SERVICES

With Polar Flow, you can automatically sync all your training data to other apps, such as Strava or TrainingPeaks.

Polar Training

 

FEATURE HIGHLIGHTS

Hill Splitter™
Hill Splitter™

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

FuelWise™
FuelWise™ smart fueling assistant

Learn to refuel and maintain adequate energy levels during your long sessions. 

Route guidance
Route guidance

Upload your route to your Polar Grit X and stay on the right path with real-time guidance.

Route planning with Komoot
Route planning with Komoot

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.*

Weather
Weather

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. 

Nightly Recharge™
Nightly Recharge™

See how well you recover from your day during the night.

Sport profiles
Sport profiles

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

Running Power
Running Power

Get more comprehensive insight into the intensity of your running sessions. 

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.

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.

Phone notifications
Phone notifications

Stay connected with notifications from your phone. You’ll get alerts for incoming calls, messages, emails and calendar events.

Strava Live Segments
Strava Live Segments

Make your runs and rides more exciting with Strava Live Segments. Get alerts about nearby segments, see real-time performance data during a segment and check your results right after you finish.

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

 

OTHER SMART COACHING FEATURES

 

Training Load Pro
Training Load Pro

Quantify the strain of your training session and see how your training strains the different parts of your body.

Running Index
Running Index

Get an estimate of your running VO2max and see how your running performance is developing. 

Running Program
Running Program

Training hard is good, training smart is better. Polar’s scientifically-validated Smart Coaching delivers the tools you need to achieve your goals with efficiency and precision. 

Smart Calories
Smart Calories

Know exactly how many calories you’ve burned based on your weight, height, age, gender, your individual maximum heart rate (HRmax) and how hard you’re training. 

Training Benefit
Training Benefit

Get motivating feedback immediately after training describing the effect of the session. 

Continuous Heart Rate
Continuous Heart Rate

Get a comprehensive view on how your heart behaves during your day. Continuous heart rate monitoring gives you even more accurate calorie burn and activity data and tells you the lowest and highest heart rate of your day. 

Sleep Plus Stages™

Sleep Plus Stages™

Follow your sleep stages and get insights to your sleep quality. 

Serene™ breathing exercise
Serene™ breathing exercise

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

Fitness Test

Fitness Test

Test your fitness level easily in just 5 minutes without breaking a sweat.