Garmin Lily 2 Owners Manual - Page 21

Getting Pulse Oximeter Readings You can manually begin a pulse oximeter reading on your watch at any time. The accuracy of these readings can vary based on your blood flow, the watch placement on your wrist, and your stillness (Tips for Erratic Pulse Oximeter Data, page 33). 1 Wear the watch above your wrist bone. The watch should be snug but comfortable. 2 Swipe to view the pulse oximeter widget. 3 Hold the arm wearing the watch at heart level while the watch reads your blood oxygen saturation. 4 Keep still. The watch displays your oxygen saturation as a percentage. NOTE: You can turn on and view pulse oximeter sleep data in your Garmin Connect account (Turning On Pulse Oximeter Sleep Tracking, page 17). Turning On Pulse Oximeter Sleep Tracking Before you can use pulse oximeter sleep tracking, you must set your Lily 2 watch as your primary wearable in your Garmin Connect account (Unified Training Status, page 13). You can set your watch to continuously measure your blood oxygen level, or SpO2, for up to 4 hours during your defined sleep window (Tips for Erratic Pulse Oximeter Data, page 33). NOTE: Unusual sleep positions can cause abnormally low sleep-time SpO2 readings. 1 Press to view the menu. 2 Select > > Sleep Pulse Ox. 3 Select the toggle switch to turn on tracking. About VO2 Max. Estimates VO2 max. is the maximum volume of oxygen (in milliliters) you can consume per minute per kilogram of body weight at your maximum performance. In simple terms, VO2 max. is an indication of cardiovascular strength and should increase as your level of fitness improves. The Lily 2 watch requires wrist-based heart rate or a compatible chest heart rate monitor to display your VO2 max. estimate. On the watch, your VO2 max. estimate appears as a number and description. On your Garmin Connect account, you can view additional details about your VO2 max. estimate. VO2 max. data is provided by Firstbeat Analytics™. VO2 max. analysis is provided with permission from The Cooper Institute®. For more information, see the appendix (VO2 Max. Standard Ratings, page 37), and go to www.CooperInstitute.org. Getting Your VO2 Max. Estimate The watch requires wrist-based heart rate data and a timed 15 minute brisk walk or run to display your VO2 max. estimate. 1 Press to view the menu. 2 Select > > VO2 Max. If you have already recorded a 15 minute brisk walk or run, your VO2 max. estimate may appear. The watch updates your VO2 max. estimate each time you complete a timed walk or run. 3 Follow the on-screen instructions to get your VO2 max. estimate. A message appears when the test is complete. 4 To manually start a VO2 max. test to get an updated estimate, tap your current reading and follow the instructions. The watch will update with your new VO2 max. estimate. Heart Rate Features 17