Apple Watch SE has the same larger display size Retina display as Series 6 so you can see more at a glance. Advanced sensors to track all your fitness and workout goals. And powerful features to keep you healthy and safe. The Sleep app lets you set a bedtime routine and track your sleep. And you also get calls messages and music right on your wrist. Its a lot of watch for a lot less than you expected. Take calls and reply to texts from your wrist Large Retina OLED display Up to 2x faster processor than Series 3 Track your daily activity on Apple Watch and see your trends in the Fitness app on iPhone Measure workouts like running walking cycling yoga swimming and dance Swimproof design High and low heart rate notifications and irregular heart rhythm notification Sync your favorite music podcasts and audiobooks Apple Watch SE requires an iPhone 6s or later with iOS 14 or later.