Apple Watch Series 11 brings invaluable health insights, including high or low heart rate notifications, sleep score for improved sleep quality, and advanced fitness metrics for workouts. Enjoy up to 24 hours of battery life on a single charge. Key features include Hypertension Notifications to detect signs of chronic high blood pressure, a detailed Sleep Score to understand sleep quality, and more health insights like ECG readings, high/low heart rate notifications, irregular rhythm alerts, and sleep apnoea detection. The Vitals app provides overnight health metrics, and blood oxygen readings are also available. Its thin and lightweight design ensures comfortable all-day wear, even during exercise and sleep. The watch acts as a powerful fitness partner with advanced metrics, Pacer, Heart Rate Zones, training load, and Workout Buddy powered by Apple Intelligence. It also includes three months of Apple Fitness+ free. The battery life offers up to 24 hours of normal use, with fast charging providing up to 8 hours of use in just 15 minutes. Built to last, it features a super-durable glass display that is 2x more scratch-resistant than Series 10, 50m water resistance, and IP6X dust resistance. Safety features include fall and crash detection, automatic connection to emergency services, and Check In to notify loved ones of your arrival. Stay connected with texts, calls, music, Siri, and notifications. Apple Watch Series 11 (GPS) works with your iPhone or Wi-Fi. Important notes: Requires iPhone 11 or later with iOS 26 or later. Hypertension notifications are not for individuals under 22, those previously diagnosed with hypertension, or pregnant persons. Data plan and specific network provider may be required for cellular features. Battery life varies by use and configuration. Apple Intelligence features require a nearby compatible iPhone and specific language settings. ECG and irregular rhythm notifications are intended for users 22 years and older and not for those previously diagnosed with atrial fibrillation. Sleep apnoea notifications are for individuals 18 years and older without a diagnosis. Vitals and Blood Oxygen apps are for wellness purposes only, not medical use. Apple Fitness+ requires a subscription. Fast charging compatibility applies to specific models. Water resistance is not permanent and can diminish over time. Emergency SOS requires a cellular connection or Wi-Fi calling. Wireless service plan may be required for cellular service.