Amazfit Cor is a fitness, sleep and heart rate tracker. The 50-meter waterproof rating allows the user to wear it during a shower or even swimming. The curved shape of the product follows the wrist to make it comfortable to wear. The 1.23-inch color touch screen offers rich information and interactive experience. Premium materials such as stainless steel and curved glass are used to make the product appealing. The bands can be easily removed by pressing a button. There are six colors of the bands are available. The battery lasts 12 days with one charge.