From keeping you healthy to facilitating on-the-go lifestyles, this one has it all. Automatic Workout Detection. Always forgetting to launch the workout app? Well, with the Series 4, you no longer need to. As soon as you start working out, the system automatically detects the change in state and vibrates to alert you. Offline Entertainment. Offline or off the grid - but never out of touch with your entertainment apps. Enjoy seamless offline connections to Apple Music and Podcasts no matter where you are. Battery Life, All Day Everyday. With moderate use, the Apple Watch lasts a full day on a single charge with the Series 4 housing a bigger battery than previous models. Making Health Your First Priority. One of the biggest selling points of the iWatch is fitness tracking. On your wrist all day, it keeps tabs on your step count, heart rate, and ECG. Depending on your preference, the specialized health features can be turned on or off. Buy Your Apple Watch Series 4 Aluminum 44mm (GPS) White Band at Reebelo. Now available in Silver.