Monitor even more of your health with the Apple Watch Series 6. The Series 6 adds pulse oximetry to measure your blood's oxygen levels (SpO2) in just 15 seconds, as well as showing you your VO2 Max (maximum oxygen consumption) score. These indicators can provide early warnings to possible respiratory conditions. They are joined by an optical heart rate monitor and the ability to record your own ECG (electrocardiogram). The Series 6 can even detect and help you with healthy habits, such as hand-washing detection, which displays a 20-second animated countdown as you scrub. Fitness is a large part of staying healthy, and the Apple Watch has a variety of ways to assist you in reaching your goals. Activity Rings displays three rings that correspond to movement, exercise, and standing. Stay mobile throughout the day to hit new personal bests as you close the rings. You can also choose from a variety of workouts, such as running, swimming, yoga, cycling, and more; with the watch recording and tracking their specific metrics. Whether inside or outdoors, the Series 6 can guide you via GPS and even provide continuous elevation updates on screen. Fitness and health metrics can be viewed, customized, and tracked on the Apple Watch's curved watch face that houses an always-on LTPO OLED Retina display. Even in direct sunlight you can view the screen with just a glance. As you move, choose from a variety of music, podcasts, and audiobooks to entertain and motivate you. For added fun, share your activity rings with friends and challenge them to 7-day activity competitions. Throughout the day, the Apple Watch Series 6 keeps you connected with the world around you. When paired with your iPhone, you can make calls and send texts directly from your wrist, navigate your surroundings with Maps, buy items with Apple Pay, and use your voice to interact with Siri.