Measure your blood oxygen level. The Blood Oxygen app periodically measures your blood oxygen level throughout the day if background measurements are turned on, but you can also take an on-demand measurement at any time. Open the Blood Oxygen app on your Apple Watch Ultra. Rest your arm on a table or in your lap, and make sure your wrist is View your cardio fitness data. Open the Health app on your iPhone or iPad. If you're on your iPhone, tap the Browse tab. If you're on your iPad, tap to open the sidebar. Tap Heart, then tap Cardio Fitness. Tap D, W, or Y to view your average for the Day, Week, or Year. Tap Show All Cardio Fitness Levels. Tap a cardio fitness level to compare It will soon become a lot harder to find the latest Apple Watch models in the United States. blood-oxygen levels. Apple introduced a pulse oximeter feature utilizing that method in 2020 in its 1. Run, walk, or hike using those associated outdoor workouts on your Apple Watch so you can establish a VO2 Max. You’ll find that number in the Apple Health app when you hit the Browse tab, then tap on Heart. You’ll see a heading labeled “Cardio Fitness.”. Tap on that tile for more detailed info. Relative VO2 max is expressed as a number between 14 and 60 with Apple Watch/iPhone and represents the amount of milliliters of oxygen used in one minute per kilogram of body weight (mL/kg/min Hmmm : r/AppleWatch. Blood Oxygen Levels Hmmm. I know that the Apple Watch isn't that great at blood oxygen, but I've been getting consistent readings and warnings about my levels. Typically they're at or above 90% I have hairy arms, dark hair, for the most part but they're also golden in portions and reflect light light I'm a Twilight The Blood Oxygen app periodically measures your blood oxygen level throughout the day if background measurements are turned on, but you can also take an on-demand measurement at any time. Open the Blood Oxygen app on your Apple Watch. Rest your arm on a table or in your lap, and make sure your wrist is flat, with the Apple Watch display facing up. Battery Life. 7 days. Garmin Vivosmart 4 is a fitness band that comes with the SPO2 sensor which can help you know your blood oxygen level. Its waterproof design allows you to use it in the office, gym, pool, or anywhere else you want to use. The variety of colors makes it easier to pick the color of your choice. 7DTL.