Wearing the Watch
CAUTION
Some users may experience skin irritation after prolonged use of the watch, especially if the user has sensitive
skin or allergies. If you notice any skin irritation, remove the watch and give your skin time to heal. To help
prevent skin irritation, ensure the watch is clean and dry, and do not overtighten the watch on your wrist. For
more information, go to
• Wear the watch above your wrist bone.
NOTE: The watch should be snug but comfortable. For more accurate heart rate readings, the watch should
not shift while running or exercising. For pulse oximeter readings, you should remain motionless.
NOTE: The optical sensor is located on the back of the watch.
• See
Tips for Erratic Heart Rate Data, page 53
for more information about wrist-based heart rate.
• See
Tips for Erratic Pulse Oximeter Data, page 55
for more information about the pulse oximeter sensor.
• For more information about accuracy, go to
.
• For more information about watch wear and care, go to
.
Device Care
NOTICE
Avoid extreme shock and harsh treatment, because it can degrade the life of the product.
Avoid pressing the buttons under water.
Do not use a sharp object to clean the device.
Never use a hard or sharp object to operate the touchscreen, or damage may result.
Avoid chemical cleaners, solvents, and insect repellents that can damage plastic components and finishes.
Thoroughly rinse the device with fresh water after exposure to chlorine, salt water, sunscreen, cosmetics,
alcohol, or other harsh chemicals. Prolonged exposure to these substances can damage the case.
Do not store the device where prolonged exposure to extreme temperatures can occur, because it can cause
permanent damage.
94
Device Information
