Ключевые слова: achievement, athlete, background, body, bracelet, calories, cardio, caucasian, check, cross country running, display, equipment, exercise, figure, fitness, footpath, gadget, gear, gps, health, heart rate, heart rate monitor, interval, jogger, jogging, lifestyle, man, mobile, monitor, portable, pulse, put on, run, runner, smartwatch, sport, stopwatch, technology, time, torso, trail, training, warmup, watch, wearable, wireless, workout, wrist, young, zip up,