The Zero Smart Watch Luna Gray features a 1.39-inch full-color HD touchscreen display with IP67 water resistance, making it suitable for swimming and intense workouts. It offers comprehensive health tracking, including heart rate monitoring and sleep analysis. The watch supports Bluetooth calling, smart notifications for calls, texts, and social media, and includes an active weather forecasting feature. It comes with multiple customizable watch faces and workout modes, equipped with a fully functioning AI assistant to keep you connected throughout the day. The Luna Gray version provides the same advanced functionalities and stylish design as the rest of the Luna lineup, with a sleek metal body.