The Blood Oxygen GuideFrom your bed to the summit
Every number

Blood oxygen, number by number

The same number means different things awake, as a night's average and as the night's lowest dip. Tap yours.

911

Call 911 if you have trouble breathing, chest pain or pressure that doesn't go away, new confusion, can't stay awake, or your lips, nail beds or skin look pale, gray or blue, whatever the number says.

  1. 100 Normal awake Watch night: typical for people like you Lowest point: healthy sleepers dip this low
  2. 99 Normal awake Watch night: typical for people like you Lowest point: healthy sleepers dip this low
  3. 98 Normal awake Watch night: typical for people like you Lowest point: healthy sleepers dip this low
  4. 97 Normal awake Watch night: typical for people like you Lowest point: healthy sleepers dip this low
  5. 96 Normal awake Watch night: typical for people like you Lowest point: healthy sleepers dip this low
  6. 95 Normal awake Watch night: typical for people like you Lowest point: healthy sleepers dip this low
  7. 94 A little under Watch night: typical for people like you Lowest point: healthy sleepers dip this low
  8. 93 A little under Watch night: lower than most Lowest point: healthy sleepers dip this low
  9. 92 Call your doctor Watch night: lower than most Lowest point: healthy sleepers dip this low
  10. 91 Call your doctor Watch night: lower than most Lowest point: healthy sleepers dip this low
  11. 90 Call your doctor Watch night: lower than most Lowest point: healthy sleepers dip this low
  12. 89 Call your doctor Watch night: talk to your doctor Lowest point: healthy sleepers dip this low
  13. 88 Care now Watch night: talk to your doctor Lowest point: healthy sleepers dip this low
  14. 87 Care now Watch night: talk to your doctor Lowest point: healthy sleepers dip this low
  15. 86 Care now Watch night: talk to your doctor Lowest point: healthy sleepers dip this low
  16. 85 Care now Watch night: talk to your doctor Lowest point: healthy sleepers dip this low

Under 85? Awake and resting, 88 or lower means get medical care now. Check any number from 70.

Wear your watch or ring to bed, and Gyroscope shows last night's blood oxygen beside your sleep every morning. Open Gyroscope

Your personalized guide

Is my blood oxygen normal?

Eight taps with pictures: your device, awake or asleep, your number and where you were. You get where it sits, what to do next and a short guide for you.

  • Personalized for you
  • Your device, your elevation, your nights
  • Free, in about a minute
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