The Apple Watch Series 11 offers invaluable health insights, including high or low heart rate notifications, and a sleep score to track and improve sleep quality. Boost your fitness with advanced workout metrics and enjoy up to 24 hours of battery life on a single charge. Key features include Hypertension Notifications, which can spot signs of chronic high blood pressure, and a Sleep Score for understanding sleep quality. It provides more health insights with an ECG app, high/low heart rate notifications, irregular rhythm alerts, sleep apnoea detection, Vitals app, and blood oxygen readings. The thin and lightweight design is comfortable for all-day wear and sleep tracking. As a fitness partner, it offers advanced metrics, Pacer, Heart Rate Zones, and training load, plus Workout Buddy powered by Apple Intelligence and three months of free Apple Fitness+. The battery life lasts up to 24 hours of normal use with fast charging capability. Built to last, it features a super-durable, scratch-resistant glass display (2x more than Series 10), 50m water resistance, and IP6X dust resistance. Safety features include hard fall and car crash detection, automatic emergency service connection, and Check In notifications. Stay connected with text, calls, music, Siri, and notifications, as the GPS model works with your iPhone or Wi-Fi. Requirements: iPhone 11 or later with iOS 26 or later. Specific feature availability and usage terms apply, including age restrictions for certain health notifications and data plan requirements for cellular service. See support.apple.com/en-gb/121115 for full details.