Ключевые слова: app, asian, athlete, athletic, black, cardio, cell, check, electronic, exercise, female, fit, fitness, gps, gym, handsome, healthy, heart, heartbeat, indian, jogger, lifestyle, male, man, mobile, monitor, music, people, performance, person, phone, pulse, rate, run, runner, smart, smartphone, smartwatch, sport, stopwatch, taking, technology, tracker, trail, training, using, watch, wearing, workout, young,