Refurbished Apple Watch Gen 6 Series 6 Cell 40mm Blue Aluminum Deep Navy Sport Band - M02R3LL/A

Blood Oxygen app

• A sensor and app measure the oxygen saturation of your blood, an important indication of how well your body is absorbing oxygen1

• Just remain still for 15 seconds to measure your blood oxygen—results appear on your watch and in the Health app on iPhone

• Series 6 takes periodic readings in the background, even while you’re sleeping, recording your blood oxygen trends over time

Always-on altimeter

• Get real-time elevation readings throughout the day with minimal impact to battery life4

• See your elevation change foot-by-foot right on your watch face with the Elevation complication—whether you’re running a trail or just taking the stairs