Apple Watch Series 6 (GPS + Cellular, 40mm) - Space Gray Aluminum Case with Black Sport Band (Renewed)
Brand: Apple

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.

LEAVE YOUR PHONE AT HOME: Apple Watch Series 6 GPS + Cellular LTE Model lets you call, text, and get directions without your phone present. It offers multiple connectivity options, including: Bluetooth, Wi-Fi, NFC, and 4G LTE to suit your needs, whatever they might be.
ALWAYS-ON RETINA DISPLAY: You no longer need to raise your wrist or touch the screen to see the time or other information on your watch face, because the display never sleeps. All you need to do is glance to find the time or your workout metrics right there where you want them.
ECG ON YOUR WRIST: With the ECG app, Apple Watch Series 6 is capable of generating an ECG similar to a single-lead electrocardiogram. It's a momentous achievement for a wearable device that can provide data for doctors and peace of mind for you wherever may be during the day.
WORKOUTS THAT DON'T QUIT: Cycling, yoga, swimming, high-intensity interval training...the list goes on. You name it, Apple Watch measures it. Set workout-specific goals, see full summaries when you're done, and track how you're trending over time in the Activity app on your iPhone.
GET LOST IN YOUR MUSIC: With Apple Music on your wrist, you've got 60 million tracks of musical motivation to take you places. You can also catch up on the latest podcasts or listen to an audiobook if that's your thing. Stream everything you need right from your watch, even without your phone.