Reasons why INEYES men’s smart watch KT71 is recommended to you Reach 3ATM waterproof level 1.96-inch high-definition IPS large screen Bluetooth call Information reminder 100+ sports modes Exercise records(steps/distance/calories, etc) Heart rate/blood pressure/blood oxygen saturation/stress monitoring/sleep tracking/female menstrual cycle recording Personalized watch face 430mAh large capacity battery Intelligent voice assistant/music control/music/remote camera/weather forecast/stopwatch/calculator/do not disturb mode/power saving mode Specifications Brand: INEYES Master chip: JL7012F6 Heart rate sensor: LC09 Gravity sensor: DA267 Microphones: Built-in Speaker: Built-in Screen: 1.96" IPS display Resolution: 240* 282 pixels Dial material: Tempered glass Watch strap material: Imported environmentally friendly silicone DC connector: Micro USB Battery capacity: 430mAh Charging time: About 2H Working hours: About 5-7 days Standby time: About 25 Days Waterproof: 3ATM Bluetooth: BLE 5.3 System supported: Android 6.0 and above; IOS 10.0 and above APP: Da Fit