Ключевые слова: activity, adult, app, athlete, band, black, bracelet, calorie, color image, communication, contraption, design, device, digital, display, electronic, exercise, exercising, fitness, fitness tracker, hand, health, healthy lifestyle, horizontal, innovation, isolated, jogging, lifestyle, modern, monitor, nubes, outdoors, person, phone, running, screen, smart, sport, technology, time, touch screen, tracker, watch, wearable, wearable computer, wrist, wristband, wristwatch,