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Fitbit Flex Wireless Activity & Sleep Wristband - Black

Regular $99.99
This product is not eligible for promotional offers and coupons. However, you are able to earn and redeem Kohl's Cash and YES2YOU Rewards on this product. Learn More

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Track your day, track your night! This slim, stylish Fitbit Flex wireless activity tracker and sleep wristband motivates you by offering a total fitness picture.


Limit 2 per household.


Find the right Fitbit tracker for you. View our comparison chart here.


  • Flex tracks steps, distance, calories burned and active minutes, showing progress with LED lights.
  • Device monitors your sleep and wakes you with a silent, vibrating alarm.
  • Set goals, view progress and earn badges as encouragement.
  • Rain, splash and sweat-proof device ensures durability.
  • Rechargeable battery lasts up to 5 days on a full charge.
  • Bluetooth 4.0 automatically syncs data to your computer or other device.


  • Flex tracker with wireless sync dongle
  • One small & one large wristband
  • Charging cable
  • Free membership & app


  • Manufacturer's 1-year limited warranty


  • Overall: 3''H x 3.75''W x 0.5''D
  • Small band: fits wrists from 5.5'' to 6.9'' in diameter
  • Large band: fits wrists from 6.3'' to 8.2'' in diameter
  • View a list of compatible Fitbit devices.
  • Model no. FB401BKK

Our hassle-free return policy means worry-free shopping.

  • Return any item, anytime, for any reason.
  • No receipt? No problem. We'll take care of you.
  • Yes, you can return it in store (even if you bought it online!).

View our full return policy here.


Rated 4 out of 5 by Great product I like this. I was afraid I wouldn't wear a clip-on style. The bracelet is easier and blends in with everyday wear. The band is difficult to fasten alone. Especially if you have severe arthritis in your hands like i do. But once its on it seems to stay put. Its waterproof. The battery lasts for several days before you have to recharge it. The blinking light system is difficult to figure out. I synced it with my phone then log in online. I like that it keeps up with not only my steps but my sleep cycle (sensitive mode). I'm a terrible sleeper and now i see why. 02/13/2015
Rated 5 out of 5 by Helping Me Lose Weight A few of my friends have been using FitBit for several months so I decided to give it a try. I am amazed at how motivating it is to see stats on calories in, calories out, steps taken, activities, and sleep record. I've lost 5 lbs in 2 weeks and I'm convinced it's because I'm using FitBit. Kohls made it easy to order and I received it quickly. 02/26/2015
Rated 5 out of 5 by Motivating and loaded with features I've been very happy with my Fitbit Flex and the various features it provides through the app and website dashboard. I just bought one for my daughter so we can have a friendly competition. I have been much more aware of the calories I consume and of my activity level. It makes me want to move more. I have gradually taken off weight and I can attribute that directly to using the Fitbit. I've had no trouble with the clasp, though a woman at work lost her Fitbit last week and I'm considering purchasing a clasp guard. 01/25/2015
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