Description:Precision work of band: 1.3 inch, high definition display screen,paired with a comfortable Silica gel strap thin streamline design to build a fashion outlook.Healthy lifestyle management: monitoring sleep quality, heart rate, blood pressure, blood oxygen and so on.Excellent sport partners: Accurately record your fitness history, recording exercise data throughout the day,make your life more regular.Important message reminding: Keep the bracelet connecting to App, Real-time sync reminder,don&39;t miss important information.IP67 life waterproof,Stainless steel is professionally woven, finely crafted, long-wearing, sweat-proof and breathable, no allergic interference.Specification:Material: AlloySize Chart:Package size:Approx.76x47x110 mm/3.0x1.8x4.3 inchDial thickness:Approx.11 mm/0.4 inchBand Length:Approx.18.5-23.5 cm/7.3-9.2 inchDial diameter:Approx.45 mm/1.8 inchPackage Includes:1 Piece Smart Bracelet1 Piece Charging Cable1 Piece English ManualNote:Please contact us firstly if there are any problems with the product.The item&39;s color may be slightly different from the pictures due to the light and screen setting difference.Please allow slight dimension error due to manual measurement.Thanks for your kindly understanding.