Samsung Galaxy Watch4 Aluminum LTE 40mm. Crush health and wellness goals with a smartwatch that gets you by providing motivating insights and connecting to your favorite apps all from its sleek, modern design. The watch that knows you best Conquer your day, no matter what comes your way. Auto Workout Tracking, Advanced Run Coaching, and group challenges push you to the next level. Interchangeable bands, integrated Google apps, and call-text connectivity combine fashion and function, taking you from the locker room to the conference room without missing a beat.