Huawei 3 Series Manual page 42

Before cleaning the device, disconnect the device from the power adapter.
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After you exercise, remove any sweat or stains from the surface of the device and the strap.
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When at room temperature, do not place the device in a liquid other than water or
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immerse the device in liquid for a long time.
To prevent corrosion and damage to the device, do not use chemical products or detergent
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to clean the device or its accessories.
After cleaning the device, use a piece of dry cloth or cotton paper to clean the device to
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prevent the remaining water from condensing inside the device and damaging the device.
To prevent discoloration, avoid letting the light-colored strap come into contact with dark
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colored clothing. If the light color strap accidentally gets dirty, dip a soft brush in clean
water and gently wipe the strap dry.
Once you have done a lot of workouts, please clean the strap in a timely manner to avoid
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the accumulation of sweat, which may cause bacteria to build up. After cleaning the strap,
dry it in a well-ventilated and dry place. Do not wear it when wet.
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