Main features:Elegant design: The display is brighter and with reduced edges, improving outdoor visibility and tactile interaction. It also uses sustainable materials, with components such as copper, steel and recycled tungsten.Health monitoring: Equipped with an ECG sensor, measurement of oxygen saturation in the blood (not for medical purposes), and the possibility to monitor the menstrual cycle and sleep. A novelty is the "Vitals" app to monitor the main health indicators during the night, such as heart rate, breathing and pulse temperature.Fitness and sports: It supports a wide range of physical activities, such as running, strength training and pilates, with the possibility to monitor also the parameters for swimming and snorkeling thanks to the new water temperature sensors and depth.Improved battery: The watch has a range of 18 hours with standard use, extendable to 36 hours in energy saving mode. Also, it supports fast charging.Resistance: IP6X certified for dust resistance and waterproof up to 50 meters, making it ideal for water activities, such as swimming and snorkeling.Compatibility:THERE'Apple Watch Series 10 is compatible with iPhone XS or later, including second generation iPhone SE, with iOS 18 or older versions.