WalkerFit A1 Smart Watch for Woman Man, Fitness Tracker with Heart Rate/Sleep Monitor,Pedometer, IP68 Waterproof, 1.7" Touch Screen, Activity Tracker with Calories, Support Android iPhone iOS, Pink

💕【Health Management】A built-in upgraded biosensor chip in a fitness watch uses PPG photoelectric sensor principles and integrates optics, structure, and algorithm to provide accurate monitoring. To safeguard your health, it offers 7*24 hour heart rate monitoring. Additionally, to support you in leading a healthier lifestyle, our men’s smart watch intelligently measure SpO2 and monitor blood oxygen levels, which will give you greater insight into your health.