Mibro GS Pro GPS Smart Watch for Men Women Bluetooth Fitness Smartwatch Android/iOS built in GPS/Answer/Make Calls,Activity Trackers with 5ATM Waterproof and SpO2 Heart Rate Sleep Monitor

High-quality 316L stainless steel case: Crafted from premium 316L stainless steel, the watch is distinguished by exceptional hardness, corrosion resistance, and durability, achieving an exquisite appearance through meticulous processing. Comprehensive sleep functions: Tracks various aspects of sleep, including rapid eye movement (REM) phases and sporadic midday naps. Wear it at night to assess and improve sleep quality. Retina-grade AMOLED display: Featuring a 1.4-inch AMOLED screen with an impressive 461 PPI, the integrated PS RAM display driver delivers a stunning visual experience. It supports AOD (Always-On Display) and various screen-off watch faces. Equipped with a highly sensitive light sensor, the screen brightness automatically adjusts to ambient lighting conditions to ensure optimal visibility. Global GPS satellite positioning: Utilizes the GPS/BDS/GLONASS/Galileo/QZSS five-constellation positioning system for precise location tracking and trajectory tracking. 9-axis motion sensors: Includes professional 6-axis motion sensors—comprising an accelerometer and a gyroscope (BOSCH-BM1270A)—along with a Memsic geomagnetic sensor that precisely captures motion data. Altitude & Barometer: Records mountaineering data based on changes in altitude and provides real-time altitude, pressure, and related information during your ascent.