Question

Not enough data

• I failed to get a result due to not getting enough data.

Answer

For your watch to get enough blood-oxygen data to provide a result, please wear your watch snugly away from your wrist and sleep at least 4 hours. Please refer to the following instructions:

Reasons you might not get a result:

• You weren't asleep for long enough. At least 4 hours of sleep is needed.
• You moved in your sleep in ways that your watch detected as wakefulness, so it didn't detect 4 hours of sleep.
• Your watch was too close to your wrist bone.
• You wore your watch while taking a nap during the day.
• Skin pigmentation or low peripheral blood flow might prevent the optical sensor on your watch from getting a strong enough signal to analyze.

Things you can try:

• Make sure your skin is clean and dry.
• Clean the sensor on the back of your watch.
• Wear your watch snugly so it won't move around while you sleep.
• Wear the watch farther away from your wrist.
• If you have dense hair, a tattoo, or a scar on your wrist, try to reposition the watch to avoid those areas.