Ключевые слова: 3d, app, application, background, blue, button, cardio, care, circle, clock, concept, design, device, digital, display, electronic, fitness, flat, gadget, health, healthy, heart, heartbeat, icon, illustration, interface, internet, isolated, isometric, mobile, modern, monitor, pulse, rate, screen, sign, smart, smartwatch, sport, symbol, technology, touch, tracker, watch, wearable, white, wireless, wrist, wristwatch,