Music Player Bluetooth Call Heart Rate Detection Bracelet Waterproof Sports Watch

Product information: Appearance size: 260*46*11 mm (total length of strap * case diameter * thickness) Color: Silicone: Black/Blue/Red; Belt: Black/Brown; Steel Band: Black Steel/Silver Steel; Traditional Watch Band: Black/Silver Weight: 55g Bluetooth: BLE 5.0 Call Bluetooth: BLE 3.0 Waterproof level: IP67 Main control chip: HS6621, 128M flash, Zhongke call chip Acceleration sensor: SC7A20 Heart rate module: SC7R30, 128KB+1M, red light + green light module, support dynamic heart rate/blood pressure/oxygen detection Display type: 1.28 inch pure round colorful display Touch screen: full touch Resolution 240*240: pixels Battery type: polymer lithium battery Battery capacity: 260 mA Charging time is about 60 minutes Working time: 5-7 days Standby time is about 30 days Material: zinc alloy shell/plastic + environmentally friendly silicone strap/leather strap/metal strap Working temperature: -20°C ~ 50°C Vibration motor: support