Features:BT Connection smart watch, new upgrades for comfortable all-round experience. Support bt 5.2 version, compatible with Android 6.0 and Above, iOS1l.0 and Above. Free to use this watch to answer and call from your phone, no need to keep along with the phone, with this technical product to free your hands.Fine Workmanship: Equipped with 1.43icnhes AMOLED screen, HD display with touch control function, 466*466px unprecedented visual clarity, providing you with a precise and clear experience anytime and anywhere. You can choose 100+ different themes of Watch Faces from the App.This intelligent watch can check your blood oxygen at all times. Sleepiness and fatigue after high-intensity exercise or work is a sign of insufficient oxygen in the body. Raise your wrist to test your blood oxygen level and keep your health under control. Supports 24-hour heart rate monitoring, real-time generation of heart rate curve, a peace of mind for you is always online.105 sports modes are included in your watch, including walk, football, basketball, running, cycling, Yoga, etc. IP68 waterproof design, and you don't need to take off your watch when washing your hands, need your daily waterproof requirements. No fear of sweating or raining.Built-in powerful battery, it can be used for 7 days under daily usage mode (including all-day heart rate, sleep monitoring, call reminder, bt call, etc.), and the total battery life is up to 20 days under basic usage mode. And it can quickly get charged in a short time.It's not just a sport watch but also can satisfy daily needs such as time function, music control, weather notification, calculator, and more functions for you to discover. Specification:Product Name: HAYLOU Solar Plus RT3 Smart WatchSensors: Heart Rate Sensors, Blood Oxygen Sensors, Acceleration SensorsProduct Size: 45x45x10.1 (mm)Product Weight: 49.5g (Contains the strap)BT Connection: BT 5.2Display: 1.43-inch AMOLED Display, 466*466 ResolutionBattery Capacity: 280mAhBattery Life: 7-Days(Heart Rate on All Day)System Requirements: Android 6.0 and Above;iOS1l.0 and AboveAPP Name: Haylou FunSport Modes: 105 Sports Mode (Running,Cycling, Yoga,and so on)Features: BT Call, Heart Rate Monitoring, Blood Oxygen Detection, Emotion Detection, Stress Detection, Sleep DetectionLanguages Supported: Chinese Simplified, English, Portuguese, Russian, Polish, Spanish, Italian, Belarusian, Vietnamese, Ukrainian,FrenchPackage Size: 16x10x3cm/6.2x4x1.1inPackage Weight: 118.5g/4.1ozPacking List:1 x Watch1 x Charging cable1 x User manual