A model from "PRO TREK" that improves outdoor usability by linking to the dedicated "PRO TREK Connected" app via Bluetooth®. Realizes a quad sensor able to measure number of steps, direction, altitude/barometric pressure, and temperature. Records calories burned, altitudes acquired by the watch, and routes acquired via smartphone GPS in the app. Automatic time adjustment is made possible worldwide via simplification of various settings. It is also able to automatically correct the altimeter and calculate sunrise and sunset times.