








⌚ Track smarter, live better — don’t just keep up, lead the pack!
The Fitbit Flex Wireless Activity + Sleep Wristband is a sleek, lightweight fitness tracker that wirelessly syncs with over 150 leading smartphones and computers via Bluetooth 4.0. It tracks your daily steps, distance, calories burned, active minutes, and sleep quality, providing a comprehensive view of your health. Water-resistant up to 1 ATM, it withstands sweat and splashes, while its lithium-polymer battery offers up to 7-10 days of use per charge. The device features a silent vibrating alarm and LED progress indicators, making it an essential companion for busy professionals committed to optimizing their wellness.















| ASIN | B00BGO0QEO |
| ASIN | B00BGO0QEO |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Best Sellers Rank | 226,805 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 11,253 in Sports Electronics & Gadgets |
| Brand | Fitbit |
| Customer Reviews | 4.1 4.1 out of 5 stars (18,591) |
| Customer reviews | 4.1 4.1 out of 5 stars (18,591) |
| Date First Available | 6 May 2013 |
| Department | womens |
| Is discontinued by manufacturer | No |
| Item model number | FB401SL |
| Manufacturer | Fitbit |
| Product Dimensions | 1.52 x 0.95 x 20.83 cm; 11.34 g |
| Units | 1 Count |
K**.
Slimming World for free!
I call mine my consoince! My Husband bought me mine for Christmas, from Argos; and I have used it everyday. Being able to log everything I do and put in my mouth has led to me losing 15 lbs so far, and being able to get into the dress which I bought in a size smaller on purpose; in time for my Daughters wedding in August. Happy days
C**E
Most insane piece of kit!!!
The best ever!!! i was given it for a present and it was the easiest thing to set up!! It is like a nagging person to make you reach your goal!!!! awesome!!! definitely recommend this product!!!
L**E
Useful product but does not sync
I've used Fitbits in the past and have found it easy to monitor my steps, log my calorie intake and monitor my health. But with this particular i have issues with it trying to sync.. It does not sync daily and i cannot understand what my calorie intake should be.. I've googled the issue but still the same outcome.
9**C
Complicated and fiddly to use if you are not into ...
Complicated and fiddly to use if you are not into tech and IT. Make sure you have enough space for the app on your device to get it going first.
J**N
Have wasted a lot of time at this instead of being ...
Mine only worked for 24 hours, doesn't vibrate, alarm doesn't work, doesn't track steps. What I have is a black rubber band that sometimes has 2 lights that blink rarely. I have contacted customer support & 5 days later still waiting. I have spent far too many hours trying to find solutions myself through forums etc. Have wasted a lot of time at this instead of being out exercising. Total waste of money, would not recommend at all. The free app " Map My Walk " is superior to this cheap piece of rubber.
A**A
So I got my second flex last week, after the first one was broken out of the box. I can't say enough how easy it is to return defective products to Amazon, very user friendly. Now for the flex. I'm totally sold on fitbit, yes I have a few. . I started out with the Surge. The surge is a great product in its own right, but is too bulky for me to wear every day in the hot summer. If you need all the bells and whistles the surge is the way to go. The surge also costs 250.I needed heart rate monitor sometimes because my health sucks. I'm 46 and I've had 2 mild heart attacks and now have chronic idiopathic pancreatitus. I spend a lot of time in bed, but I still need to do some easy physical activity, which for me is walking. Since the surge was too sweaty and bulky for me in the summer months, I tried the Charge HR next. I really like that one too, but it cost 149..but it's alot less bulky and has a great accurate enough heart rate. But it still got sweaty under the wrist and I was worried about it getting harmed when I do my housework. So then I got the flex.. The flex is very slim and can be loosely worn because it doesn't track heart rate.. Which for me is fine for most days when I don't need all the features. So no sweaty wrist, and, you can purchase many different types of replacement bands to match your outfit. The flex does track, steps, calories, miles and sleep which must be turned on manually. The flex also only costs about 80 bucks so I'm not as concerned about it getting wrecked doing heavy duty spring cleaning. The cost also makes it easy to get introduced to fitbit. The software and app are amazing and very social and user friendly. The app also allows you to hook up different trackers and set your goals up for what you want to do. Having friends on the app allows you to compete and stay motivated too. The flex uses 5 LED lights to help you see how you are doing through the day. Each light represents 20% of your goal. For me, I find the lights more motivating than having the raw data on my wrist because you have to work harder to get all the lights and complete the goal for the day. And, unlike the surge and charge that need to be charged every 3 days, the flex only needs to be charged once a week which is a lot easier if you like me have a crazy busy life.. So get a flex, you will love it and the fitbit community.
D**N
There is something addictive to a Fitbit that makes me exercise more. Since I first put it on I have changed many of my daily habits like parking in the back of the lot or always taking the stairs or walking to the neighborhood store. Unfortunately I immediately doubled my walking without building up to it and developed a stress fracture in my 2nd met! I still make my goal but I have to ride a bike and strap the tracker to my foot. I wish it had a watch feature and automatically detect sleep so the next Fitbit I buy will be a Charge. The Flex's clasp is a nightmare, It is ridiculously hard to snap on, painful really. I have to turn it around to snap it on and then rotate it back because the snap is on the underside of my arm which is soft and tender compared to the top. All in all it is a terrific product and the website is very cool. I want the scale now.
S**A
Excellent product and fast delivery!
S**N
Nice product. Tracks everything. Wakes me up without disturbing my wife
K**K
Bought it for my sister . She loved it. Fits perfect and motivates alot. The Delivery was also quick with amazing packaging.
Trustpilot
2 months ago
4 days ago