Ключевые слова: activity, athletic, background, beat, cardio, cardiology, care, checking, closeup, color, counting, device, different, electronic, equipment, exercise, fitness, flat, gadget, health, heart, items, lay, lifestyle, many, measurement, measuring, nobody, object, orange, oximeter, pulse, rate, rhythm, rope, shoes, skipping, sneakers, sphygmomanometer, sport, sports, sporty, stethoscope, top, training, view, workout,