This item is Refubished. It has been tested and reset to factory settings by a certified technician. The watch is in good working order with minor wear and tear including scratches, scuffs, dings and blemishes possible. Apple Watch Series 6 lets you measure your blood oxygen level with a revolutionary new sensor and app. Take an ECG from your wrist. See your fitness metrics on the enhanced Always-On Retina display, now 2.5x brighter outdoors when your wrist is down. Set a bedtime routine and track your sleep. And reply to calls and messages right from your wrist. It’s the ultimate device for a healthier, more active, more connected life.