Ключевые слова: activity, athletic, background, beat, black, body, bottle, cardio, cardiology, care, checking, color, composition, counting, dark, device, different, drink, dumbbells, electronic, equipment, exercise, fitness, flat, gadget, health, heart, items, lay, lifestyle, many, massage, measurement, measuring, nobody, object, oximeter, pulse, rate, red, rhythm, roller, sport, sporty, top, training, view, water, workout,