This is a nice watch/ fitness tracker. Easy to instal app and open to use. Alert vibration notification instatanious to phone alert or ring. Read txt on watch also. Seems to monitor Sleep, BP & HR. Calories and steps daily. And it stays charger between 4 - 5 days. I bought it for her and a hit a homerun. She loves it.. worth every penny so get yours today and enjoy the feeling of knowing your health is monitored at a great value.