Ключевые слова: activity, athlete, autumn, bracelet, calories, counter, detector, device, electronic, equipment, exercise, fall, fit, fitness, future, gadget, gym, hand, health, heart, jog, jogging, lifestyle, loss, male, man, measure, modern, morning, outdoor, park, pedometer, person, pulse, rate, run, smart, sport, technology, timer, tracker, trainer, training, watch, wearable, weight, wrist, wristband, young,