THIS WATCH IS SERIES 7, GREEN ALUMINUM CASING, 45MM. SOME SCRATCHES FROM WEAR AS SHOWN IN PICTURES. 

Highlights

• Always-on Retina display has nearly 20% more screen area than Series 6, making everything easier to see and use
• Measure your blood oxygen with a powerful sensor and app¹
• Take an ECG anytime, anywhere
• Get high and low heart rate, and irregular heart rhythm notifications
• Stay in the moment with the new Mindfulness app, and reach your sleep goals with the Sleep app
• Track new tai chi and pilates workouts, in addition to favorites like running, yoga, swimming, and dance
• Track your daily activity on Apple Watch, and see your trends in the Fitness app on iPhone
•  Sync your favorite music, podcasts, and audiobooks
•  Pay instantly and securely from your wrist with Apple Pay
• All-day battery life and faster charging