The Haylou RS3 is the most technologically advanced smartwatch from Haylou. You dream of the most advanced features offered by premium and expensive watches, but you don't want to pay astronomical amounts ? Look no further, the king of value for money comes with its latest piece and offers a lot indeed. The watch is comfortable to wear thanks to its rounded design and has a high level of water resistance up to 5ATM, so you can use it even during intense workouts and feel free to dive into the water with it. A blood oxygen measurement function and continuous heart rate and sleep monitoring take care of checking your health. A wide range of sports modes will make your workouts more effective, and Sony's integrated GPS will help you reach your sports goals with pinpoint accuracy. A watch with this many features also needs a proper battery with up to 21 days of continuous use. Health Expert Explore Real Me SpO2 tracking AMOLED HD display Customized watch face 5 ATM waterproof GPS satellite positioning