Xiaomi Watch S4 Rainbow

1.43” AMOLED Display - Clear & Always-On: Enjoy a vivid, ultra-clear AMOLED display with smooth touch response and Always-On mode. Perfect for bright outdoor use and stylish everyday wear. Heart Rate & SpO2 Monitoring + Sleep Tracking: Track your heart rate, blood oxygen saturation (SpO₂), sleep stages, stress, and more-24/7 health monitoring to help you stay on top of your wellbeing. 150+ Sports Modes with Smart Detection: Supports a wide range of sports like running, cycling, swimming, yoga, and more. Features automatic workout recognition and detailed activity analysis. Bluetooth Calling + Smart Notifications: Make and receive calls directly from your wrist via Bluetooth connection. Stay updated with message previews, app alerts, calendar reminders, and weather info. Long Battery Life + 5ATM Waterproof + GPS: Enjoy up to 12 days of battery life on a single charge. 5ATM water resistance makes it swim-friendly, and built-in GPS helps you track your workouts accurately.