Energize your day with Charge—an advanced activity wristband that tracks your steps taken, distance traveled, calories burned, floors climbed and active minutes. Stay connected throughout the day with real-time fitness stats and Caller ID on the OLED display. And when the day is done, automatically monitor your sleep and set a silent, vibrating alarm. Whether you’re at the office or on the go, Charge wirelessly syncs your stats to your smartphone and computer to help you find the motivation you need to achieve your goals.

• *Size Small fits 5.5"-6.5", Large fits 6.5"-7.7".  Refer to this sizing guide to be sure you get the right fit.*
• Activity Tracking - Accurately track all-day stats like steps taken, distance traveled, calories burned, stairs climbed, and active minutes
• See daily stats, time of day, and exercise mode with a bright OLED display
• Auto Sleep + Silent Alarm - Monitor your sleep automatically and wake with a silent alarm
• Caller ID - Get call notifications right on your wrist when your smartphone is nearby
• Access real-time run stats like time, distance, and pace to stay on track
• Sync stats wirelessly and automatically to your computer and over 150 leading smartphones
• See compatible iOS, Android, and Windows phones

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Make fitness a lifestyle with Fitbit Flex—a slim, stylish device that tracks all-day activity like steps, distance, calories burned and active minutes. See how every day stacks up with LEDs that light up like a scoreboard as you get closer to your goal. Then wear it at night to measure your sleep quality and wake with a silent, vibrating alarm. Day or night, Flex fits comfortably around your wrist, is water-resistant, and has a 5-day battery life. It also syncs to computers and 150+ leading smartphones, so you can access your stats anywhere and see your progress in charts and graphs.

• *Includes both small and large wristbands*
• Tracks steps, distance, calories burned and active minutes
• Monitor how long and well you sleep
• Wakes you (and not your partner) with a silent wake alarm
• LED lights show how your day is stacking up against your goal
• Slim, comfortable and easy to wear (sold with both large and small wristbands included with an interchangeable clasp)
• Sync stats wirelessly and automatically to your computer and over 150 leading smartphones - The Fitbit app is full of graphs, charts, and tools designed to help you track your progress and better understand your health and fitness.

• What mobile devices are supported for syncing?
  • See compatible iOS, Android, and Windows phones
• How do I charge my flex?
  • Your tracker battery lasts for about 5 days. To charge it, remove the tracker from the band and place it in the charger until all 5 lights are solid.
  • If you are having trouble, your tracker's charging contacts may be obstructed by microscopic dirt or debris that prevents them from making a good connection to the charger. Use hand sanitizer and a tissue or dampen a cotton swab with rubbing alcohol and carefully clean the charging contacts on your tracker. Do not submerge your tracker in water or use abrasive cleaners. Thoroughly dry your tracker before attempting to charge. Be sure to fully seat your tracker into the charger, with the charging contacts fully inserted into the charging cable enclosure.
• How do I reset my tracker?
  • lf your tracker is not responding, it may be fixed by restarting.
  • 1. Plug your charging cable into the USB port and insert your tracker into the charging cable.
  • 2. Insert a paperclip into the small pinhole on the back of the charger.
  • 3. Press on the pinhole for 3-4 seconds.
  • Your Flex will now be reset. Take your tracker out of the charger and insert it back into the wristband.
• Can the wristband irritate my skin?
  • The Flex wristband is made of a flexible, durable elastomer material similar to that used in many sports watches. It does not contain latex. The clasp is made of surgical-grade stainless steel and contains traces of nickel. As with any type of jewelry, some people may experience allergies. Numerous factors can cause an allergy, such as a nickel sensitivity, reactions to bacteria that can accumulate in watch wristbands or other wearable devices, a reaction between the wristband and your soap or perspiration, or an allergy to the material of the wristband. If you notice any signs of skin irritation or experience any discomfort, please discontinue use.

Shipping Note: Shipping to Alaska, Hawaii, P.O. Box and APO addresses is not available for this item

Warranty: 60 Day Replacement Limited Warranty

For warranty support, please call 844-477-9429 Monday - Friday from 8:30AM - 12PM; 1:00PM - 5:00 PM PST.  As long as you are in the 60 day window there is a no-questions-asked replacement guarantee for any Fitbit item that arrived defective.  You will receive a replacement Fitbit with a return label for the defective unit.