Large Display Haylou’s RS4 features a large 1.78-inch screen with touch functionality. Enjoy a 368×448 pixels AMOLED display. Numerous workout modes Sports modes on the Haylou RS4 let you monitor your real-time athletic performance in 12 different sports/workouts. These sports modes let you keep tabs on your performance during a workout. Health monitoring Stay up-to-date with your heart rate, sleep, and breathing with the newest Haylou smartwatches. Your heart rate and sleep can be tracked in real-time and accurately with these watches. Raise your wrist to pay Shop with the Haylou RS4 smartwatch, which is fast and easy. Waterproof As the latest Haylou smartwatches are IP68 certified and protected against water entry into the watch, you don’t have to take it off when bathing, or swimming. Super Long Battery The Haylou RS4’s battery of 230mAh gives you an amazing standby time, up to 12 days when used on basic settings.
