KARSEEN Fitness Tracker, Activity Tracker Fitness Watch Heart Rate Monitor Colorful OLED Screen Smart Watch with Sleep Monitor, Step Counter, IP68 Waterproof Pedometer for AndroidiOS Phone 100% Authentic KarseenYour purchase all KARSEEN Brand product comes with a full 45 day no-risk, no-nonsense 100% Money Back Guarantee. Fitness Tracker with Heart Rate Monitor24-hour auto tracking to provide your activities data of calories consumption, mileage, duration and display your heart rate at the same time. Sync app "VeryFitPro" can learn about the overall level of your health. Better LifeEnable you to make a suitable training plan for better health.To monitor Heart Rate more accurately,please wear the device on the upper position of your wrist and a bit tighter than usual when you are taking exercise. Fitness Tracker with IP68 WaterproofKARSEEN ID130Plus Color HR Reaches waterproof Level IP68,the highest level of fitness tracker waterproof rating standards.It can play a protective role for temporary immersion, no bothering for hand washing or shower. Never Miss a Message/Call with GPS TrackingIt will vibrate to alert you if your phone receives a phone call, SMS text and SNS messages including Facebook, Twitter, WhatsApp, Linkedin, Messenger, etc.After tracking, you can connect your phone's GPS to se Longer Battery Life and Full color IPS screen  Built-in low-power-consumption Bluetooth chip and 70mAh rechargeable battery. Charge one hour last 5-7 days.Full color IPS screen show more vivid icon. Water Temperature can not exceed 45CEffectively put an end to cosmetics, daily necessities, sweat and other corrosion.It is also guaranteed to work under 2 meters water depth for 3 hours without water leaked in.