How do I use my watch or tracker safely?

Your safety is our top priority. We compile these guidelines to help you use your device safely and comfortably.

Using and handling your product

Charging your device

• Use the charger that came with your device. We do not recommend using unofficial third-party chargers.
• Remove any metal or magnetic objects such as metal bands or jewelry, from the charging pins before you begin.
• Do not charge your device when it's wet. Thoroughly dry your device before charging it.
• Keep the charging contacts on the back of your device and the pins on the charging cable clean and free of debris. For more information, refer to How do I clean my Fitbit device?
• Make sure the device and its charging components are well-ventilated. Do not cover the device, cable, or adapter with a blanket or pillow while charging.
• For best results, do not leave your device plugged in on the charger longer than overnight.
• After charging your device, unplug the charging cable.
• Avoid charging your device in direct sunlight.

Cleaning and caring for your device

• For cleaning recommendations, refer to How do I clean my Fitbit device?
• For Product Care tips, refer to Wear and Care.

Using and storing your device

• Do not leave it in the drawer for prolonged periods of time. Ideally, charge your device every 6 months or more.
  • If you want to store your device for several weeks or months, charge it to 100% then turn off the device to avoid additional battery use. Note that you can only turn off certain Fitbit devices. For more information, refer to How do I turn off my Fitbit device?
  • For trackers, charge the device to 100% at least once every 6 months.
  • For watches, charge the device to 100% at least once per year.
• Recommended temperature ranges
  • Your device works best between ambient temperatures of 32° and 104° F (0° and 40° C).
  • Your device should be stored between ambient temperatures of -4 °F and 113 °F (-20 °C and 45 °C).
  • For your specific device, refer to your user manual.
• If your device was exposed to extreme heat or cold, wait until your device has reached room temperature before attempting to charge or use it.

What do I do if the device is overheating?

If your device feels warm, hot, or you feel a burning sensation while you’re wearing it, remove it immediately. Contact support for assistance. Review our Fitbit Product Care guide.

If your device is overheating while charging, review the charging tips indicated in Using and handling your product. Contact support if you need further assistance.

Tip: If you find device damage during or after charging, refer to What do I do if the device appears damaged?

What do I do if I experience skin irritation, allergic reaction, or rashes?

Review our Fitbit Product Care guide and stop wearing the device immediately. Let your wrist breathe. If any of those symptoms persist, contact our customer support and consider contacting a dermatologist.

What do I do if I feel a shock, tingling, soreness, stiffness, or numbness while wearing the device?

If you experience any discomfort, loosen the band, give your wrist a break, and take it off. Contact support for assistance.

What do I do if the device appears damaged?

Important:

• If there is immediate danger, contact emergency services immediately.
• If the product is on fire, contact the fire department immediately.

Stop using or charging your device. Contact support if:

• You suspect the battery is swollen, bloated, leaking, exploded, or popped.
• Your device is charging and you find visible damage or issues on the device such as melting, smoking, property damage from the surrounding areas, or sparks.
• Your product caught fire.
• The device or its components were swallowed by a child or a pet.
• Sharp edges on the device caused a cut or injury.

For more information, review our Safety & Regulatory Documentation.