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  • Fitbit Flex Wireless Activity Tracker and Sleep Wristband - Black
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Fitbit Flex Wireless Activity Tracker and Sleep Wristband

by Fitbit
2,484 customer reviews
| 34 answered questions

RRP: £79.99
Price: £57.04 & FREE Delivery in the UK. Details
You Save: £22.95 (29%)
In stock.
Dispatched from and sold by Amazon. Gift-wrap available.
33 new from £48.00
Black
  • Records steps taken, distance traveled, calories burned
  • Record active minutes, hours slept, quality of sleep
  • Silent wake alarm, water resistant
  • Track your goals with online and Mobile tools
  • Records steps taken, distance travelled, calories burned
  • Set your goals and sync your stats

There is a newer model of this item:


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£57.04 & FREE Delivery in the UK. Details In stock. Dispatched from and sold by Amazon. Gift-wrap available.

Frequently Bought Together

Fitbit Flex Wireless Activity Tracker and Sleep Wristband - Black + DelTex® Silicone Fasteners For Fitbit Flex Wireless Wristband Bracelet (10 Pack)
Price For Both: £63.03

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Product details

  • Boxed-product Weight: 100 g
  • Delivery Destinations: Visit the Delivery Destinations Help page to see where this item can be delivered.
    Find out more about our Delivery Rates and Returns Policy
  • Item model number: FB401PK-EU
  • ASIN: B00CK82GBQ
  • Date first available at Amazon.co.uk: 3 Oct. 2013
  • Average Customer Review: 4.0 out of 5 stars  See all reviews (2,484 customer reviews)
  • Amazon Bestsellers Rank: 2 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
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Product Description

Product Description

Never stop moving with Fitbit Flex. Wear this slim, stylish device all the time and get the motivation you need to get out and be more active. It tracks steps, distance, and calories burned and shows you how you’re stacking up against your daily goals. At night, it tracks your sleep cycle, helps you learn how to sleep better, and wakes you silently in the morning. Access your stats anytime on your computer, tablet, or from smartphones – both iPhone and Android. Flex is your perfect companion, and stays with you everywhere - even in the shower.

Wear and Care
Our products are meant to be worn all day and night, so it’s important to follow a few simple guidelines as you wear and care for your device. To keep your band clean and your skin happy follow the following steps:

  • Keep it clean: Regularly clean your band and wrist - especially after working out, sweating, or exposing your skin to substances like soaps and lotions, which can get trapped beneath the band
  • Keep it dry: If your band gets wet - like after sweating or showering - rinse and dry it thoroughly before putting it back on your wrist
  • Give your wrist a rest: Prolonged rubbing and pressure may irritate the skin, so give your wrist a break by removing the band for an hour after extended wear
  • Make sure your band isn’t too tight: Wear the band loosely enough that it can move back and forth on your wrist

Box Contains

1 x Fitbit Flex Tracker
1 x Small Wristband
1 x Large wristband
Charging Cable
Wireless USB dongle
1 x Free Fitbit Account

From the Manufacturer


Mobile and Online Tools

Sync stats wirelessly and automatically to your computer and 120+ leading smartphones, including Android, iOS and Windows.

Set goals, log food, see progress, analyse trends and earn achievement badges through your mobile and online dashboard.

Share and compete with friends and family on the leaderboard and in Fitbit challenges.

Fitbit Flex

Wireless Activity + Sleep Wristband

Never stop moving with Fitbit Flex. Wear this slim, stylish device all the time and get the motivation you need to get out and be more active. It tracks steps, distance, and calories burned and shows you how you’re stacking up against your daily goals. At night, it tracks your sleep cycle, helps you learn how to sleep better, and wakes you silently in the morning. Access your stats anytime on your computer, tablet, or from smartphones – both iPhone and Android. Flex is your perfect companion, and stays with you everywhere - even in the shower.

  • Activity Tracking
  • Exercise Tracking
  • All-Day Wear

Community

Enlist your friends and family in helping you reach your goals by sharing your stats, creating fitness challenges, and taking a group leader board challenge.

Wear It All the Time

Flex never leaves your side. It fits comfortably around your wrist all day and night. You can even wear it in the shower.

Sleep

Flex never sleeps. Wear the comfortable wristband all night, and it will even track how long and how well you sleep. Online tools illustrate your deep sleep and wakeful patterns. Silent Wake technology wakes you with a gentle vibration at a desired time without an alarm or disturbing your partner.

Category Everyday Everyday Everyday Everyday Active Performance
Steps, Calories, Distance
Clock
Sleep Quality and Silent Alarm
Floors Climbed
Active Minutes
Caller ID
Continuous Heart Rate
Music Control & Notifications
GPS Tracking

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Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

1,582 of 1,640 people found the following review helpful By PT Cruiser TOP 50 REVIEWER on 9 May 2014
Colour Name: Black
Update 7/3/14 - Fitbit just came out with a new upgrade to the Fitbit app for the iPhone which adds some very cool GPS features. I'm adding details at the end of this review.

I bought 3 of these fitbit flex devices, one for myself, my husband and my sister. Before purchasing I researched several wristband devices such as the Jawbone UP, the Nike Fuel and and the Polar Loop. I also looked at the fitbit force which is a newer version of this band. The lack of water resistance on the force was a deal breaker for me. I wanted to be able to wear this band 24/7 and to be able to wear it in the shower or when swimming. That was part of what made it attractive to me. Also, after reading reviews about the clasp problems on the force and how many people lost them, I wanted no part of that. They are also quite a bit bigger and look clunckier. The wristband on the UP looked like it would catch on everything and had no display at all. The Polar had lots of quality problems. I wasn't crazy about the looks of the Nike. The display is nice and I can see how people would like them, but not my style. The fitbit flex, to my tastes, had the coolest look. I also know a couple of people who own the fitbit flex and they were very enthusiastic about them so that influenced me as well.

So here is what I like about the flex: I like the way it looks on my wrist. All of us got the slate color. You can also order bands in a few different colors, both here and on the Fitbit site. It is lightweight and even though I don't often wear a watch I don't notice this on my wrist at all. The clasp was VERY difficult to secure the first couple of times until the rubber softened up a bit and until I got the hang of it. I secured it off of my wrist a couple times when it was new.
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6 of 6 people found the following review helpful By bee90s on 21 May 2014
Colour Name: Black
I've had a fitbit flex for just under 6 months now. Unfortunately, while it's packed full of good ideas and features, many of these are not particularly well executed, which is a shame for something that costs around £80 (or did at my time of purchase).

Overall, it'll work if you just want a wristband that tells you how many steps you've taken (in the form of 1 to 5 flashing lights on the wristband itself), and vibrates when you reach your goal. If this is all the motivation you need, then this could suit you fine. But if you're looking for something a bit more sophisticated, it falls short, for the following reasons:

- It's useless if you want to track what foods you are eating, as well as how much exercise you're doing. Unfortunately, the software isn't set up to operate in the UK, which means that no UK foods appear in the database. All food needs to be manually entered, including the number of calories, and if you so choose (as I wanted to), also manually entering the amount of protein, carbohydrates (sugar / starch), fat (saturated / unsaturated), sodium, and various vitamins in everything you eat. This might be ok for someone who lives off sandwiches or other ready-made meals. But anyone cooking anyone from scratch will find this immensely time consuming to do this for each and every ingredient. This essentially makes the food tracking element of the fitbit useless in the UK. Within a week, I gave up using it, and reverted back to tracking my food consumption using other free apps (e.g. myfitnesspal), which have a wealth of foods available in the UK in their database. I then had to manually enter the number of calories eaten each day, taking the data from myfitnesspal, and putting into the fitbit - which is where the second issue came up.
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529 of 573 people found the following review helpful By Dan_M on 18 Aug. 2013
Colour Name: Slate
I didn't buy my fitbit flex from amazon, but rather a high street catalogue shop and in fairness that was because I wanted it then and there as I was about to go running and wanted to try it out.

I already had a fitbit zip which was good but the amount of times I left it on the bedside cabinet meant days went without any tracking. so I thought the wristband would be better for me.

I use the large band and I'm happy that it's comfortable (if not the easiest to put on with one hand - but it won't come off) and I forget it's on my wrist.

I like the sleep tracking function - it has shown me what I already know - I'm a restless sleeper - but no advice on how to change that!

More so that anything else I set a target number of steps on my iphone and throughout the day give it a double tap and see my progress. I've yet to not achieve my goal as I find myself quite competitive and don't want to be beaten by a machine.

The up side of that is I'm spending more time with my dog out long walks and after 3 weeks of using it I've lost 6lbs in weight. my overall goal was to become more active and fit and as a result I knew I'd lose weight but I didn't think it would be that quick.

the iphone app is ok but the web dashboard is much better if you have the time to log in to it. the graphs are more detailed and easier to follow online. there is a fitbit premium service you can join for £39.99 but I did the one week trial and couldn't really see what all the fuss was about.

the flex is well made and easy to use and it's great if you can get your friends into a fitbit - you get a progress chart on your phone and it constantly updates showing who is in the lead for the week with the total number of steps - another great way to get motivated.
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