Stronger than ever: Huawei's Watch Fit 4 Pro features a robust 550 MP ultra-strong aluminum body, titanium alloy frame and rubber glass display. This triple protection provides a great wearing experience. Very light with the right size. It features a 9.3mm fluid structure weighing just 30.4g with an attractive wing-like 3D design making it truly distinctive. Large range of exercises. Immerse yourself in your favorite activities like running, snorkeling up to 40m or golf, and benefit from data-driven exercise assessments and suggestions, with over 100 exercise modes available at your fingertips. Health Management System: The Huawei Fit 4 Pro measures biomarkers more quickly and accurately, thanks to advanced optical engineering, ultra-precision glass technology and next-generation health monitoring algorithms. Electrical Cardiography (ECG) Application: New and improved electrode technology has made the collection of the ECG signal more accurate and responsive.