The Polar Pacer Pro Gold is a GPS watch for running enthusiasts. This watch measures your running performances accurately. Thanks to the built-in GPS, you can leave your smartphone at home and still keep track of your routes. In Komoot, you plan your own running routes in advance, and you get a turn-by-turn route navigation. This way, you know exactly which way to go while you run. Via the walking test, you can get an insight into your fitness. The watch measures this via the VO2 max function. The Performance Test allows you to keep track of your performance. The built-in barometer registers the number of descends and ascends while you run. Don't take off your watch in the evening, because it measures the recovery of your body while you sleep. You don't have to charge the Polar often, because it lasts 7 days with average use. This watch is recommended for a wrist circumference of 17 to 19cm.