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    Grit X
    The Polar Grit X is a watch based fitness tracker with a 1.2 inch color touchscreen LCD display, real-time heart rate monitor, step counting, sleep tracking and calories burned.
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    Description
    The Polar Grit X is a watch based fitness tracker with a 1.2 inch color touchscreen LCD display, real-time heart rate monitor, step counting, sleep tracking and calories burned.
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    We investigate, research and test so you can choose with confidence.

    Become a member to compare products & get access to ratings.

    We investigate, research and test so you can choose with confidence.

    Become a member to compare products & get access to ratings.

    We investigate, research and test so you can choose with confidence.

    CR Expert Take

    How did it perform in our expert lab testing?

    Overall Score

    The Overall Score for this model is derived from our expert lab test results.
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    Current Range of Tested Fitness trackers
    What goes into the Overall Score?
    Ease of use
     /  5
    Step count accuracy
     /  5
    Heart-rate monitor accuracy
     /  5
    Versatility
     /  5
    Ease of interaction
     /  5
    Readability in bright light
     /  5
    Readability in low light
     /  5
    Ease of pairing
     /  5
    Water resistance
     /  5

    Detailed Test Results

    Overall this model was very easy to use, not accurate for counting steps, and very good at measuring heart-rate accuracy. With recent version iPhones, our experts found it somewhat difficult to pair, very easy to interact with, and likewise for recent version Android phones, somewhat difficult to pair, very easy to attach to the body, and very easy to recharge the battery. In our water immersion test it passed the manufacturer's claim of 164 feet for 10 minutes.

    About

    The Polar Grit X is a watch based fitness tracker with a 1.2 inch color touchscreen LCD display, real-time heart rate monitor, steps, sleep tracking, and calories estimation. The display has a backlight for use at night, claims a battery life of 4 days, and has Connected GPS. It has the following sensors: optical heart-rate, accelerometer, magnetometer-based compass, and barometric altitude. It has notifications for calls, texts, and emails. It has socialization features: Connect with online sports communities: Komoot, Strava, TrainingPeaks, MyFitnessPal, Endomondo, and Nike+ Run Club. It includes inactivity alerts which remind you to move if you are sitting for a long time. It has extra features such as: The Polar Grit X Hill Splitter that uses a barometric altimeter to show data at-wrist during cycling such as: up and down hill counting, distance, time and Komoot Routes Integration. The power saving mode allows reducing the usage rate of GPS tracking, gesture activation settings that can be turned on or off, turning off Heart-rate tracking, and reducing screen refresh rate via a screensaver at different intervals. It has strong vibration alerts, very good buttons with firm detent providing haptic feedback by vibrating when pressed, has standard 22mm interchangeable watch bands, and charger included. Its dimensions are 0.8 x 0.5 inches (width/thickness) and it weighs 2.3 ounces.

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