With the charm and beauty of lightness appearing from delicacy and elegance, Amazfit GTR 42mm adopts a light and robust watch body made of aluminum with only 9.2 millimetre thickness, while the weight of the watch body is lighter than six pieces of A4 paper. And with the lustered microcrystalline zirconium ceramics bezel, the watch looks even much slimmer and more delicate. Large Retina-grade AMOLED Display with Elegant Watch Faces. Outstanding and more Comfortable Viewing Experience. Stunning Retina-grade AMOLED Display that will keep you staring at your watch. The watch face store provides a great variety of original interfaces, making your Amazfit GTR a seamless work of art. A Revolutionary Battery Life of 12 Days. No Worries About Running Out of Battery Anymore. An advance chip with low power consumption, a new and enhanced circuit design, a deep-in power optimization and power consumption management, enable the Amazfit GTR to perform perfectly for over three weeks. Amazfit GTR is water resistant to a depth of 50 meters, which is comparable with traditional high-end watches, so you have nothing to worry when wearing it in daily life or swimming. Moreover, the high-precision GPS positioning system is continuously optimized to provide rich exercise data for your outdoor exercise.