Apple Watch Series 6 (GPS + Cellular, 40 mm) Light blue aluminum case with deep navy Sport Band Aluminium colour: Light blue Screen size: 40 mm Band Material: Silicone About this article With the model GPS + Cellular phones, send messages and find directions, all without phone (Supported carriers: Vodafone. Apple Watch and iPhone must have the same mobile operator.) You can measure oxygen in your blood with a new sensor and app You can check your heart rhythm with the ECG app Always-on Retina display is 2.5x brighter in daylight, even when you keep your wrist down The S6 SiP chip is up to 20% faster than the Series 5 chip With Apple Watch, you measure how much you move every day, and you check your progress in the Fitness app on iPhone You can record all your workouts: running, walking, cycling, yoga, swimming and dancing Swimproof Sync music, podcasts and audiobooks Apple Watch requires iPhone 6s or later with iOS 14 or later