Ключевые слова: 50s, 60s, accessory, activity, aged, app, call, cellular, check, checkup, connect, control, day, device, digital, female, finger, gadget, hand, health, healthy, heartbeat, innovation, interface, lifestyle, mature, measuring, mobile, modern, monitor, people, person, pulse, senior, sensor, smartwatch, technology, time, touch, touchscreen, tracker, using, watch, wearable, wellness, wireless, woman, wrist, wristwatch,