About this item: 
Stay connected to family and friends with calls, texts, and email, and stream music, podcasts, and audiobooks on the go, even when you don’t have your phone 
Always-on Retina display has nearly 20% more screen area than Series 6, making everything easier to see and use than ever before 
The most crack-resistant front crystal yet on an Apple Watch, IP6X dust resistance, and swimproof design just to name a few awesome features 
Take an ECG anytime, anywhere - Get high and low heart rate, and irregular heart rhythm notifications - Measure your blood oxygen with a powerful sensor and app 
Track your daily activity on Apple Watch, and see your trends in the Fitness app - Stay in the moment with the new Mindfulness app, and reach your sleep goals with the Sleep app