Ключевые слова: activity, app, athlete, athletic, calisthenics, caucasian, checking, concept, copy space, endurance, equipment, exercise, fit, fitness, gadgets, gymnastics, healthy, heart rate monitor, lifestyle, male, man, muscular, outdoor, outdoors, pedometer, people, performance, person, runner, shirtless, smart, smart watch, smartwatch, space for text, sport, sports, street, street workout, strength, strong, technology, training, watch, wearable, wellness, workout, wrist, wristwatch, young,