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Heart Rate Monitors > 
Fitbit > 
Item#: 9SIA0AJ18C2811

Fitbit Flex Wireless Activity and Sleep Tracker Wristband - Slate

  • Water-Resistant
  • With you all the Time
  • Reminds you to keep moving
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Wear this Fitbit Flex FB401BK wristband to monitor steps taken, distance, calories burned and active minutes, so you can easily set daily activity goals. The wristband also tracks sleep quality and length to promote overall wellness. Records steps taken, distance traveled, calories burned and minutes spent being active, so you can easily keep an eye on your daily routine. Monitors the time and quality of your sleep. A silent alarm gently wakes you in the morning. Lets you sync the device, set goals, track progress and more from your computer or mobile device (Internet connection required).


Quick Info

Warranty

  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year


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  • Erik P.
  • 8/20/2014 11:26:36 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year

3 out of 5 eggsDisappointing when compared

Pros: Mobile and Website are modern looking, responsive, and inviting to browse.

Cons: No read out on the device.. only dots that blink to signify things (Good luck remembering)

Battery life is requiring charging every other day, and uses a proprietary connector that no one else but fitbit owners have.

inaccurate compared to hip worn trackers (when I was working on our apartment, had extra 25% steps compared to hip worn tracker)

the wrist piece breaks so easily, you'll need to super glue it back together over and over again. They fixed this in later versions of FitBit, but not here.. so be gentle when taking the piece in and out of the strap.

Other Thoughts: I think Fitbit knows what they're doing, but this device was an iteration on a arc of devices.. and I want something a bit more durable.

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  • Daniel C.
  • 2/11/2014 9:18:00 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsImpressive Device

Pros: A cleverly designed tracking device. The rubber band is straight forward and surprisingly tough. I'm impressed on how well it monitors everything and overall does not cause any issues with my normal day to day. If you are counting calories and want to keep a solid grasp on how much you are burning a day. I believe this is the way to go.

The battery life on this thing is impressive, I only charged it once (when I first opened it) and its still going.

Cons: You do need to use their software to get the best result. There software is not bad but it means you need to use Fitbit.com for sure if you want the best results.

The first time setup attempts to be as straight forward as possible but as the device requires a PC or smartphone to be useful. No PC and No Smartphone means no information.

Be careful they are trying to get android support but at this time Android support is limited. Apple users are fine for the most part.

1 out of 1 people found this review helpful. Did you? Yes No

  • Steven L.
  • 12/15/2013 12:24:44 PM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggs

Pros: Bought as gift for my son as this is what he asked for

Cons: none

Other Thoughts: Arrived via USPS which is not the method I like I prefer FedEx or UPS

0 out of 10 people found this review helpful. Did you? Yes No

  • Steven L.
  • 12/12/2013 1:56:17 PM
  • Tech Level: Average
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggs

Pros: Bought as a gift for my son as this is what he asked for.

Cons: Shipped via USPS which I am not a fan of.

Other Thoughts: Shipped quickly.

0 out of 10 people found this review helpful. Did you? Yes No

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Home > 
Health & Beauty > 
Personal Care > 
Heart Rate Monitors > 
Fitbit > 
Item#: 9SIA0AJ18C2811
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