This is a sports smart bracelet. You can see your messages or incoming calls without your mobile phone nearby.The fitness watch support detecting heart rate, blood pressure and blood oxygen changes, monitor your sleep every night. Multiple themed dials make the wrist full of vitality. There are a variety of sports modes to set personal goals for your running, cycling, and sports. IP67 waterproof and dustproof. Bluetooth remote control to take pictures. It is a very good gift for friends and family members to help them stay active and stay healthy. 9 27/32" L x 45/64" W