The Buyer's Guide

Find it, buy it and tell us how you really feel.

product image
87 Engadget Score
An all-around great product that's among the best in its category. You'll almost certainly be happy.
87

An all-around great product that's among the best in its category. You'll almost certainly be happy.

How we score

The Engadget Score is a unique ranking of products based on extensive independent research and analysis by our expert editorial and research teams. The Global Score is arrived at only after curating hundreds, sometimes thousands of weighted data points (such as critic and user reviews).

Engadget Review

The Flex offers all the features you'd desire most in a fitness tracker while also being more attractive and more affordable than its competitors.

Read Full Review
Pros
  • Wireless syncing over Bluetooth 4.0
  • Convenient, simple LED display
  • Competitively priced
  • Clean, attractive design with multiple color options
Cons
  • Sleep tracking is inconsistent at best
  • Database of nutritional data is disappointing
87 Engadget Score
An all-around great product that's among the best in its category. You'll almost certainly be happy.
87

An all-around great product that's among the best in its category. You'll almost certainly be happy.

How we score

The Engadget Score is a unique ranking of products based on extensive independent research and analysis by our expert editorial and research teams. The Global Score is arrived at only after curating hundreds, sometimes thousands of weighted data points (such as critic and user reviews).

Scores

Engadget

87
 

User Reviews

70
johndeps
A dependable product that doesn't really stand out from the competition. - Engadget
20
gymrat60
It's really nothing more than a glorifies stop counter. It's impossible to...read more
10
aravel
I was so excited to purchase the fitbit flex until I actually purchased. It's...read more
Write a Review

Score Breakdown

 
74
Average user Score
 
70
johndeps
07.24.15
A dependable product that doesn't really stand out from the competition. - Engadget
 
20
gymrat60
02.02.15
It's really nothing more than a glorifies stop counter. It's impossible to get accurate caloric burn as it asks you how many calories you burned after a workout. If I'm wearing a heart rate monitor that calculates my calorie burn, why do I need a Fitbit? I don't. Save your money.
 
10
aravel
01.09.15
I was so excited to purchase the fitbit flex until I actually purchased. It's user friendly. Very light the only problem is IT WASN'T ACCURATE AT ALL. I slept through the night with it. Said I awoke a few times. The alarm was great, gently and silently vibrates. When I woke up it said I had burned 1378 calories. It also said I've took 569 steps. Lol! What I just woke up? I took it off my wrist and placed it on top of my drawer, went to the bathroom came back and it calculated another 120 steps....did this thing grow legs and crawl or what? I called fitbit the agent on the line was no help at all she ran "a test" and asked me to take 100 steps to see if it was accurate. Evidently it was very inaccurate and she didn't know what else to say and said it's 95% accurate. I tried to give it the benefit of the doubt. I searched up reviews when is was right out front of best buy (which was where I purchased it) and the reviews just confirmed that this piece was not worth it. I read more then several times that the life span of fit bit doesn't last at all. I returned it the next day and purchased another one that I'm completely satisfied with.
 
10
SnowMann
01.08.15
An awful product that should be avoided. You'll be sorry. - Engadget
 
80
aimanaw
12.29.14
There's a lot to like about this in spite of a few flaws. - Engadget
 
10
h1lacey
12.25.14
This is an awful desgin. Takes at least thirty minutes until you can actually clasp the piece together. It is honestly an awful design. I hate it and I am switching to jawbone and suggest everyone else should too.
 
60
Benkenon
10.16.14
Silly looking, and only somewhat accurate; slight arm movements register as steps, and what Fitbit considers "active minutes" is ridiculous. I'm on my feet all day at work, moving back and forth through the office, but when I get home Fitbit says I've had *2* active minutes during a 9-10 hour workday. The Flex does not register stairs, bicycle pedaling, etc. now, a lack of HealthKit compatibility has made me get rid of my Fitbit and begin the search for a different device.
 
90
maxwave
09.25.14
This is my 3rd fitness tracker and it is the best one I have used. I have to use wrist for placement so my options are limited to these type. I have an issue with how worn out it looks after about 6 months. This was the case for the others as well. I DO NOT shower with it and it still looks like its been through the ringer. Fortunately, you can replace the band unlike my previous UP by jawbone.
 
10
Freecycleml
09.24.14
BROKE AFTER LESS THAN ONE MONTH OF USE. Won't sync to phone or computer. Won't respond to tapping (to check progress to goal or enter sleep mode). I tried everything on their website - restarting the fitbit, restarting bluetooth, restarting phone... I've emailed them (nearly 48 hours ago) and got an auto response that it might take "two business days or more" to get back to me. This is unacceptable, given that the product is brand new and there's no way to call them for support.In short, I'm not happy.
 
20
meljmitcch
09.16.14
An awful product that should be avoided. You'll be sorry. - Engadget