With the biggest and most advanced Always-On Retina display yet, everything on your Apple Watch Series 7 is bigger and better. Series 7 is the most durable Apple Watch ever created, with an even more shatterproof front glass. Measure oxygen levels in your blood with advanced features, take an ECG anytime, and use apps for mindfulness and sleep tracking. Plus, you can track dozens of workouts, including Tai Chi and Pilates. With the Apple Watch Nike Series 7 and the built-in Nike RunClub app, you can track your workouts and listen to guided runs for jogging. Listen to music through your Watch for motivation. Activate Nike twilight mode to help you be seen. And choose from exclusive Nike watch faces and straps.