Industry first use ECG + PPG (electrode + photoelectric) test blood pressure / heart rate / ECG products, test accuracy industry-leading! Blood pressure monitoring using the electrode + photoelectric combination test method, combined with two test results, obtained health data, (by blood pressure calibration test, the data more accurate). Blood pressure monitoring / dynamic & static heart rate monitoring / ECG test / breath test Heart rate monitoring can be set to 10/30/60 minute time monitoring. Electrocardiogram test / breathing training USB (Universal Serial Bus) data cable fast charging port, no data cable 0.91-inch highlight OLED, subtitles can push the display information, capacitive touch screen, you can slide around the switch menu Sleep monitoring (sleep time, sleep quality, awake), according to data to improve sleep Call notification, We Chat, QQ, SMS reminder push (IOS, Andrews call Chinese call), Time display, step, blood pressure, heart rate in real time, distance display Movement function (step, distance, calorie) Sedentary reminder to remind you to lift the screen Master chip: NR51822 G-sensor: LIS3DH Blood pressure/ECG/heart rate: SI multi-in-one sensor The font: Chinese-English Screen: 0.91 inch LOED display Human-computer interaction: Multi-touch screen Battery: 100m Ah USB (Universal Serial Bus) charging Usage time: 5-7 days Standby time: 20 days Bluetooth version: V4.0, BLE System requirements: Android 4.4 & above, i OS8.0 & above, BT 4.0 support