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    What are the safety information I should read?

    Updated on 2017-05-18

    Important safety information. Please read this information carefully before you use the device and save it for future reference.

    Do not use this device if:

    • You have skin problems or wounds in the wrist area as this can result in prolongation or aggravation of these symptoms.

    It is possible that you can experience adverse reactions due to wearing a device that stays in contact with your skin for long periods at a time. These reactions can include:

    • Skin reactions to pressure or friction of the device against the skin.
    • Skin reactions to dirt or moisture trapped between the device and the skin.
    • Allergic reactions to the materials used; stainless steel, plain plastic or thermoplastic polyurethane (TPU).

    If you experience such reactions remove the watch from your wrist, stop using the watch and give your skin a couple of days rest. Before refastening the watch, be sure to take note of the instructions on how to wear the watch mentioned the later chapter ‘Wearing the health watch’. If you continue to experience reactions consult your doctor and notify Philips Consumer Care.

    Do not use the device in the following conditions:

    • Do not wear the device when scuba diving.
    • Do not use the device if you have a pacemaker or another implantable medical device and have not
      consulted your doctor first.


    • Only use a double isolated USB-adapter for charging.
    • For charging, always place the watch in the charging cradle first before connecting the USB cable to the USB adapter. Do not touch the charging pins of the charging cradle.
    • Stop exercising if you feel dizzy, nauseated, short of breath or pain in your chest. Consult with your doctor before continuing exercising.
    • A few medications (e.g. for high blood pressure) lower the maximum heart rate and thus the target zone rate. If you're taking such medicine, consult with your doctor to find out if you need to use a lower target heart rate. If you have a heart condition or you are in cardiac rehab, talk to a healthcare professional about what exercises you can engage in and what your target heart rate should be.
    • The Philips Health Watch is designed for personal use only. The watch measures several health parameters, which are updated over time and are tailored to you. Switching the watch between different people would lead to inaccurate measurements.
    • No modifications of this equipment are allowed. This may result in hazardous situations. Make sure the device is in proper working condition before use.
    • Only use the charging cradle and detachable parts authorized by the manufacturer. The use of unauthorized parts or accessories may cause damage to the device or injury to the user.
    • Always dry the device after swimming and showering. Moisture under the strap and device could irritate your skin.Clean the device regularly and after each sports session to decrease the risk of inaccurate measurements and to avoid skin irritation.
    • If you feel any discomfort due to the straps, loosen up the straps and give your skin rest by not wearing the device for a short period of time. If you still feel discomfort after a short period of rest, remove the device and consult the Philips Consumer Care and/or your doctor.
    • Keep the device out of reach of infants, children or pets, since inhalation or swallowing of small parts can be dangerous or even fatal.
    • Keep the device away from fire and heat sources. The internal batteries can overheat and may explode or leak, causing fire or explosion.
    • During pregnancy, always follow your doctor's advice with regards to weight management, exercise type, frequency, duration, intensity and rest intervals. The heart rate zone indicator is not applicable during
      pregnancy. Make sure to update your weight in the app on a regular basis. Failure to do so might result in inaccurate energy expenditure (calorie burn) estimation.
    • Sleep algorithms have not been validated for people with sleeping disorders, and should not be used for diagnosis or treatment decisions in case of sleep problems.


    • Make sure the device is in proper working condition before use.
    • To avoid measurement errors, do not use the device near strong electrical or magnetic fields, for example magnets, radio transmitters, microwave ovens.
    • Keep the device away from fire and heat sources, as the battery can overheat, causing fire or explosion.
    • Use this device under the right environmental conditions as indicated in this user manual. If not, this could affect the performance, lifetime of the device and measurement results.
    • If you have any problems with this device, such as setting up, malfunction, maintenance, please contact Philips Consumer Care.
    • Do not open, disassemble or repair the device yourself. Modification of the device voids your warranty. If you encounter any problems with the device, contact Philips Consumer Care.
    • Report to Philips Consumer Care if any unexpected operation or event occurs.
    • Use a slightly damp or dry cloth to wipe the surface of the device. Never use compressed air, scouring pads, abrasive cleaning agents or aggressive liquids such as petrol or acetone to clean the device.
    • If the battery can no longer be recharged or when the device does not function properly anymore, please contact the Philips Consumer Care center in your country.
    • Optical heart rate measurement has been shown to provide valid estimates of heart rate for most people under most normal conditions. However, for accurate measurement it is reliant on three key factors:
      placement of the sensor in direct contact with the skin, transmittance of light through the skin and sufficient blood flow through the skin. Conditions can arise where accurate optical heart rate measurement is not possible. When in doubt about the accuracy of measures that the watch provides, stop using the watch and read the trouble shooting section. If you cannot find a solution there, please contact Philips Consumer Care.

    The information on this page applies to the following models: DL8790/10 .

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