Apple Watch SE 3 is packed with health, fitness, connectivity, and safety essentials?all for a great value. Track your sleep score. Get richer health insights in the Vitals app.? Stay active with a wide range of workouts. Save time with fast charging.? See your info at a glance with the Always-On display. And still get all-day, 18-hour battery life.? Legal Apple Watch SE 3 requires iPhone 11 or later with iOS 26 or later. ?The Vitals app is for wellness purposes only and not for medical use. ?Fast charging is compatible with Apple Watch Series 7 and later, any Apple Watch Ultra model, and Apple Watch SE 3. ?Battery life varies by use and configuration. See apple.com/watch/battery for more information. ?The temperature sensing feature is not intended for medical use. Temperature sensing is available only on Apple Watch Series 8 and later and all Apple Watch Ultra models. ?Sleep apnea notifications are available on Apple Watch Series 9 and later, Ultra 2 and later, and SE 3. The feature is intended