Product description Size: 44 * 35 * 10.5mm Display size: 1.7 ""IPS (HD color screen) Resolution: 320 * 320 Battery capacity: 260mAh Bracelet BLE chip: HS6621 Heart rate and blood pressure chip: SC7R30 Sensor: G-sensor 3-axis Call Bluetooth: AB5376A2 Built-inBT 5.2 Metal technology, 1.7 ""HD IPS anti-glare screen. 2.5D screen, new UI dynamic style; New low-power dual-chip+intelligent node algorithm, typical 7 days of use, 75 days of long endurance and 10 hours of exercise; Multi-scenario intelligent split screen demonstration can meet your daily operation habits, and the knob shows personality; It supports 21 languages around the world, and configures 21 countries to synchronize notifications and push notifications to realize personalized selection; Abundant dials, freely changing wrists, more support for third-party customized dials, so that each time the screen is lit, different experience Intelligent hand split screen, 24-hour accurate detection of heart rate, blood pressure monitoring, blood oxygen monitoring, exercise monitoring, mileage, Kalilo consumption, message reminder, sleep record, message reminder, remote control camera.