![]() Learning how to fuel yourself efficiently is an imprecise science, a fact that Polar acknowledges. I'm also not convinced about the utility of FuelWise. ![]() Also, I don't always follow preplanned routes. But adding Komoot to the watch and preplanning routes is a pain in the tuchus. The Grit X does have a compass, and it integrates with the Komoot app for route planning. I’m not going to buy a watch for use in the backcountry that doesn’t come with maps. I get lost in the woods by stepping 10 feet off a trail to pee. Better yet, it can survive up to 40 hours with the GPS running, and otherwise around four to five days on a single charge.īut here’s the major flaw with it: There are no onboard maps. It has a 1.2-inch color touchscreen, with a sport strap and five buttons around a stainless steel bezel. Unlike other Polar watches I’ve tried, like the Vantage M and the Ignite, the Grit X is a backcountry watch and Polar’s attempt to go after the hardcore Garmin fans. It also took into account my sleep patterns (or “nightly recharge” in Polar-speak) to recommend what kind of exercise and intensity of workout to do. Unlike most fitness platforms that are very prescriptive-you either pay attention to the recommendations or you don't-the Grit X will accommodate any decisions I choose to make, whether I want another day of cardio or different strength-building exercises. If I don't have my own routine, it will suggest specific exercises, like squats or sit-ups. If I click Yes to improve my strength today, it suggests bodyweight training. It remembers my previous exercises and suggests that today might be a great day for strength conditioning versus cardio or stretching. Once the Grit X has measured your fitness level, it will determine which workouts can maintain or improve it. It's a (very rough) estimate of your VO 2 max, a measurement that our editor in chief, Nick Thompson, calls " the size of your car's engine." The training program, called FitSpark, is adaptive, which means it adjusts according to the exercise you've done or want to do.įirst, you take the onboard fitness test, which estimates your aerobic fitness by measuring your heart rate and heart-rate variability while you're lying down, and takes into account other factors like your age, gender, height, and body weight. Polar Flow isn’t the most attractive app or the easiest one to use, but on the watch, it’s one of my favorite training platforms. It records extremely granular data in its accompanying web and app service, called Polar Flow, which syncs with popular health platforms like Apple Health, Strava, and Nike+ Run Club. The Grit X has built-in GPS and Glonass, a compass, altimeter, and optical heart rate monitor. If all fitness wearables were high school stereotypes, Garmin would be the burly jock, Fitbit the prom queen, and Polar the lovable nerd busily programming their graphing calculator.
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