The Apple Watch Series 6 features an innovative sensor to measure blood oxygen levels in 15 seconds, and a Retina display that is always on and 2.5 times brighter outdoors. It runs on the fast S6 processor, offers accurate sleep tracking, ECG, and is water-resistant up to 50 meters. Of course, the watch has no cracks or scratches on the screen or anywhere on it, only a small scratch in the last picture on the side, and it's not very clear. The watch is very clean and has been used cleanly. The reason for selling is the need for money, and the battery is at 87%. I hope not to undervalue the item. The watch is worth it and is clean.