Product Name: Smart Watch Men L13 ECG Bluetooth Call Waterproof IP68 Model NO.: L13 Feature: Bluetooth, Water Resistant Material: Rubber Usage: Detection, Communication Display: TFT Trademark: OEM Transport Package: Retail Box with Carton Specification: 10X8.5X4 cm Origin: Guangdong, China Product Description Product DescriptionL15 SmartWatch SpecsChipsetRelated: RTL8762C Main frequency: 40MHz Memory RAM: 128KB, ROM: 128KB extend 128MBProduct standardGB4943.1-2011;GB/T22450.1-2008Touch PanelMultiple touchesHeart rate24h automatically monitor heart ratePedometerSteps, Calories, Distance monitorSleep monitor9 pm-12 pm automatically turn on to monitor your sleep statusCall remindDecline the call onlyBluetoothBluetooth 5.0Battery370mAh lithium-ion polymer battery.VibrationSupport