The Apple Watch Series 7 features a large 45mm Retina display, a dual-core processor, and 32GB of internal storage. It runs on iOS 15 and is water-resistant up to 50 meters. Connectivity options include Cellular, Bluetooth 5.0, and Wi-Fi. The durable aluminum casing offers a sleek, modern look. Its GPS function allows you to track workouts like cycling, yoga, swimming, and high-intensity interval training. The ECG app monitors heart health, and you can make/receive calls and messages. It's compatible with iPhone 6s or later running iOS 15 or later.