This is the Aolon Navi R3 Ultra smartwatch. Built for extreme adventure, it features industrial-grade ZN27 zinc alloy and a sapphire glass panel for exceptional impact resistanceAolon. Equipped with a 1.43-inch AMOLED screen and newly upgraded high-precision GPS, it delivers accurate positioning and route trackingAolon. It supports 24/7 heart rate, blood oxygen and sleep monitoring, multiple sports modes, Bluetooth calling, smart notifications and long battery life. Works with Android and iOS, ideal for professional outdoor use.