Product information:Color: black-steel strap, black-silicone strap, golden-steel strap, golden-silicone strap, silver-steel strap, silver-silicone strap Packing List: head, strap, manual, charging cable Applicable people: women, men, neutral, teenagers, couples, adults, the elderly, others Operation mode: touch button Screen Type: TFT screen Battery life: 7-14 days Function: waterproof, heart rate monitoring, blood pressure measurement, Bluetooth calling, smart reminder, sleep monitoring