Fitbit Flex is an activity and sleep wristband
Wear this slim, stylish device all the time and get the motivation you need to get out and be more active. Fitbit Flex tracks sleep, steps, distance, and calories burned and shows you how you’re stacking up against your daily goals.
- Tracks steps, distance, calories burned and active minutes
- Monitor how long and well you sleep
- Wakes you (and not your partner) with a silent wake alarm
- LED lights show how your day is stacking up against your goal
- Slim, comfortable and easy to wear (includes Large and Small wristbands)
- Sync stats wirelessly and automatically to your computer and over 150 leading smartphones
Amazon.com
eBay
Newegg.com
PT Cruiser –
Update 12/8/15 – Fitbit just added a new firmware update for the sleep timer feature. Once updated it’s no longer necessary to tap the Fitbit before going to sleep or when waking it. It will now recognize when you’re inactive and have gone to sleep. It also has some new goal setting software in the app relating to sleep to make it easier to focus on getting more (or less) sleep. The graphic interface is pretty nice. I’m looking forward to using this since I’ve become something of a night owl and could really stand to get on a better schedule. One more thing to like about my Fitbit.The update took about 5 minutes using my iPad and plugging my Fitbit into its charger while it updated. The whole thing was simple. A red arrow on the dashboard, in the sync area alerted me to the upgrade. I really like this new feature.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 I also looked at the fitbit force which is a newer version of this band.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. Making sure the band and clasps are lined up correctly and then placing one finger directly below the clasp and my thumb directly above and squeezing hard was the way to do it.I like that it’s water resistant and that I can wear it swimming or in the shower. It is safe down to 10 meters or around 30 feet. I like that the wristband is made of TPU rubber, which according to Wikipedia is a type of rubber used in automotive instrument panels, caster wheels, power tools, sporting goods, medical devices, drive belts, footwear, inflatable rafts, and a variety of extruded film, sheet and profile applications. I think it should hold up for a very long time. I like that the display on the band gives me a rough idea by tapping on it of my progress throughout the day. I can also check my progress on my iPhone 4S and see number of steps so far, calories burned, how many hours of sleep I got last night and how often I woke up or was restless. So far it seems very accurate. I can also track the foods I’ve eaten and the calories, my weight goals and weight lost, check on the weekly number of steps friend’s with Fitbits have taken and compare them with my own.I like that I can wear it 24/7 and only have to take it off to charge it once every 7 days. It takes about 3 hours to charge with a USB thingie that comes with it. I use a wall adapter to charge it but could also use a USB port on my desktop or laptop computer. I’ve lost too many pedometers in the past by dropping them out of my pockets or forgetting about them and sending them through the washing machine, so the wristband seems like a much better option for me. I also like that I can connect wirelessly with my smartphone and with the little dongle included that goes into my desktop or laptop, can connect with those wirelessly as well. Software downloads for all of these are free. I’m also able to connect on my first gen Kindle HD 8.9 although I can’t see where it’s shown as a supported device so far. But it works with the Android fitbit software in the app store.The step measurements seem reasonably accurate. Waving my hand slowly won’t register as a step. Waving wildly will. Driving in the car won’t register but reaching around quickly in the car sometimes will. Typing on the computer or Kindle won’t register. I’ve heard that swimming doesn’t register either but you can input the time and activity on your phone or tablet. When I first got the flex I started the iPhone app and watched my steps register on my screen as I walked around the house. That, and watching my steps on the treadmill have shown it to be pretty accurate for me, although not perfect. I think that all pedometers have some inaccuracies. What I’m looking for is a comparative trend where I can tell how much exercise I’m getting. The accuracy is good enough for me.So I wake up in the morning, tap the wristband quickly a few times to tell it I’m awake. Then if I tap it twice I see one tiny blinking light, telling me I’m working on my first 2,000 steps. Later, when I’ve hit that mark and tap to check again, I’ll see one solid light and the second one blinking. There are 5 lights total and each represents 2,000 steps (or 20% of my goal. I could set it up differently on my computer, using a different number of steps as my daily goal if I wanted to.) So I can see my approximate progress any time during the day. When I hit my goal of 10,000 steps the band vibrates and all the lights flash. That means you done good!I can set up to 8 silent vibrating alarms on this fltbit. I have one to wake me up on weekdays (you can specify which days) and one at 8:00 each night to remind me stop eating for the day. The vibration gets my attention and is effective at waking me up. I set the alarms on my computer or phone.At night when I’m in bed and ready to go to sleep I tap the wristband rapidly a few times, it vibrates briefly, and goes into the sleep mode until I wake it again in the morning.So am I happy that I purchased the Fitbits for myself and my family members? Yes I am. It motivates me to walk or run more. I can connect to other friends and family with Fitbits to see everyone’s weekly step progress but what really motivates me is just competing against myself. I’ll find myself parking in the back of the parking lots at stores to log those extra steps or walking around the store longer because it’s a good way to add even more. When I haven’t reached my goal at night, I’ll sometimes walk around the house several times just to hit a number. Now that can’t be all bad, can it?Update 1/12/14 – I’ll keep updating this review with comments and observations as I use this device. I noticed that walking at a rapid pace is counted as “active minutes”. Someone on a message board suggested adding a touch of lotion to the clasp if you’re having trouble getting it to clasp when it’s new.Update 1/16/14 – A full charge is lasting just a bit over 7 days. It takes about 3 hours to recharge it fully.Update 1/21/14 – Some people have complained about this band coming undone and losing it. I haven’t had any problems with it at all, even when pulling tight coat and shirt sleeves over it, brushing my arm against things or the dog pulling on it once or twice. (I’m sure the dog could have pulled it off if I didn’t stop him.) The other day I had the dog’s leash wrapped around the wrist with the Fitbit and even with the dog pulling against the leash the fitbit stayed on. We walked this way a couple of miles before I noticed it and unwrapped the leash from my wrist. But even with all that agitation my fitbit stayed put. It has stayed on through enough that I’m not very concerned about losing it. I’ve only taken it off to charge it. I have the band snug enough that I can only put one finger beneath the band but I can move it a couple of inches back and forth on my wrist.Update 7/3/14 – A new update that works with iPhones that use the Fitbit app was released a few days ago. I’ve used it with my iPhone 4S and really like the new upgrade. It adds a whole new dimension to my Fitbit app. With the upgrade, I just click on the exercise icon on the dashboard which takes me to a new screen showing the days of the week that I’ve exercised. (Meaning a walk, run or hike, something in addition to the regular walking in my daily activities.) This screen shows exercise frequency by day of the week, it puts a check on the days that you do some planned exercise. If I click the little stopwatch in the upper right-hand corner, it takes me to a screen where I can click Walk, Run, or Hike. I go back and can then click Cues which takes me to another screen where I can select whether or not I want to hear spoken cues. I can also tell it which cues I want including: Distance, Time, Average Pace, Split Pace, and Calories Burned. Then I go back again an can select the frequency of the cues from every .5 miles to every 5 miles. Or, I can make the cues time based ranging from every 2 minutes, 3, 4, 5, 10, 15, 20, 25, or 30 minutes. I can also select the volume of the cues. (Medium was perfect for me.) Then, back again to select a playlist from my iPhone’s loaded tunes. Last, I allowed location services for Fitbit in my phone settings and I was ready to go. Now I see a big red circle with a Start arrow on the screen over a GPS map showing my location. I pop in my earphones, click Start and my music starts playing.As I walk, I can see a screen showing how far I’ve walked, rate per mile, time elapsed. Every half mile a voice interrupts my music telling me how far I’ve gone and all the other things I’ve specified in Cues that I wanted to know. Then it goes back to playing my music until it’s time for my next designated Cue. How cool is that? It works seamlessly. At the end of my walk I tell it I’m finished (or I could also pause it if I stop to talk to a neighbor or something). When I’m finished (or even during the walk or run) I can see a little red line showing my route on the map. The steps from my walk are added to my steps count, just as they always are. I love these new features. They add a lot to the Fitbit experience.For those of you who track calories and foods eaten in the Fitbit app, the update now includes a bar code scanner. So far, the things I’ve scanned have been in their database. If you don’t see the bar code symbol in the upper right-hand corner of the Log Food screen, log out of the Fitbit app and then log back in and it should be there.Update 11/28/14 – If something happened to ithis Fitbit today, what would I replace it with? Another one just like it. If one of the new Fitbit models was interchangeable with it on a daily basis I might get one of those too, just because I like new technology. But this one would be my main fitness band. I would like having a watch built in, but then it would look kind of silly wearing a conventional watch on the other arm. And I have a lot of nice watches.Update 12/12/14 – I just noticed today that the Fitbit Flex is the #1 Best Seller on Amazon this holiday season. It does seem like when I see people wearing fitness bracelets, this is the one they’re most often wearing. A lot of the competitors have lowered prices significantly on their devices which is probably the best indicator of all. It’s nice to know that I’m not the only Fitbit fan after wearing it for nearly a year. :)Update 12/26/14 – My Fitbit looks all new for the holidays. This replacement bracelet took over 20 days to arrive but for about $2 it was worth the wait.1pc Small S Black with White Dots Spots Replacement Band With Clasp for Fitbit FLEX Only /No tracker/ Wireless Activity Bracelet Sport Wristband Fit Bit Flex Bracelet Sport Arm Band Armband A couple people have asked me how the bands hold up over time. I have to tell them that I don’t know since I’m wearing different colored ones almost every day. They don’t have much of a chance to show wear.After almost a year of wearing these 24/7, none of us have had one come off accidentally. Even the cheap knock-off bands seem sturdy and reliable like the original. And I’m not a very careful person about pulling tight sleeves over it or draping grocery bag handles over my arm.I have the steps across our back patio counted out by counting them myself. It is 60 steps back and forth once. (Yeah, I know, way too anal.) Oftentimes when I haven’t hit my 10,000 steps for the day, I’ll go out and walk back and forth with my iPad on the patio table to check my progress. I know from doing this that the Fitbit step count is dead-on accurate for counting steps when walking. Dancing will add steps which I think is fair since it’s at least as good as walking for exercise.Update 1/30/15 – I can’t believe I’ve had my Fitbit Flex for over a year already. I’m still wearing it 24/7 as a great motivator to keep moving. I’ve had several people email me with questions about the way it counts steps so I thought I’d share this with you. I tested another fitness band recently, wearing it on the same arm as the Fitbit. The other band recorded a lot more steps than the Fitbit. I’ve “manually” counted steps while walking around different areas around my house and compared them to the Fitbit and found them to be exactly the same. But I never did it for more than about 100 steps. Now I was curious because the readings on the two bands were so different. So I went for a walk and counted out 1,000 steps as I took them, counting in my head. (Mumbling under my breath, actually.) Before I started, I noted the starting number of steps on my iPhone for both bands using the apps for each. At the end, I checked the number of steps for both bands. The Fitbit recorded 1004 steps. The other band recorded 1,217. Only 4 extra steps on the Fitbit is pretty impressive and is close enough for me. I’m contacting the manufacturer of the other band to see why it’s so far off.Several people didn’t realize that you can adjust the stride for the Fitbit. Just log into the dashboard in your Fitbit app, click on the little gear thingy in the upper right hand corner and select “Settings”. There’s a field there for Stride Length and Running Stride Length. You can manually enter your personal stride length. If you leave these blank, the app will estimate the values based on your height and whether you are a man or woman. Click the “Update Profile” button to save your changes. Remember to sync to update your tracker with the new stride measurements. I didn’t even realize I could do this until several months after I had my Fitbit. I guess it must have estimated correctly in my case because when I put it in manually I didn’t notice a difference.Update 4/30/15 – Fitbit has an update that now allows you to track multiple Fitbit devices on your Fitbit app. I haven’t tried this, but from what I understand this will allow you to go back and forth between other models and once registered it will recognize them automatically. It’s tempting to try the Fitbit Charge or the Surge that can measure heart rate or pulse or have caller ID. They’re bulkier than I would like to wear on an all-the-time basis, but would be nice for workouts. And new technology is always fun. The Flex is still my first love and I like the switchable bands, but I’ll look at the new models now that it isn’t an either/or decision. Here are their instructions for adding another Fitbit:Update your Fitbit app (if you haven’t already)‘Set Up a New Fitbit Device’ from the Account tab in the Fitbit mobile app or Fitbit ConnectFinish the setup instructions, and start swapping – we’ll take care of the rest!Update 5/7/15 – Has everyone seen the new Fitbit commercial? I usually fast forward through TV commercials on the DVR, but this one I recorded and kept until I could find it on youtube: https://www.youtube.com/watch?v=K0qVi_nF6y8 This makes me smile every time I watch it.Update 1/24/16 – When I purchased my Flex a little over 2 years ago it was advertised as being “Water resistant to 10 meters or 33 feet” which is 1 ATM. Their website now states: “Flex has been tested up to 1 ATM meaning it is sweat, rain and splash proof. However, the device is not swim proof. We also recommend taking Flex off before showering because, as with any wearable device, it’s best for your skin if the band stays dry and clean.” The definition of 1 ATM, as I understand it is that it indicates that under static (nonmoving) conditions at 10 meters below the surface of the water the pressure of the water will not breach the seals on the device. But I can’t take it into the shower? Perhaps even more confusing is the Fitbit Surge is rated at 5 ATM (50 meters) and has the same warning about not being swim proof and not to be worn in the shower. Are they just trying to ensure that users don’t abuse the tracker?That said, I always shower with mine, I never dry it off afterward except the top when I’m drying my arms. I don’t swim often but when I do, I leave it on. If I were going to spend a lot of time swimming on a regular basis I might take it off since it doesn’t track swimming anyway. But for splashing around in a pool occasionally, I don’t worry about it.My skin is somewhat sensitive to watch bands and I’m allergic to some metals and other materials. I couldn’t be much LESS careful about the Fitbit and have never had a problem with the band and my skin. The underside is often damp from getting wet in the shower even half an hour later and it hasn’t bothered my wrist. Being able to wear this 24/7 was a major selling point for me and it has worked just fine since January 2014.
Trouble –
Are you kidding me?First two out of three of our Fitbits are bad,. Just pieces of crap. Then the last one goes dead. I contact you. Then a full month later you contact me through my review.You send me a new one. But you don’t bother to tell me you deleted my password.So I request a new password over 150 times in four days. (I kept score.)A week or so later you say your password link was broken.You send me a password.* User does not exist or password is incorrect.You people are the worst I have ever heard of.Are you able to count how many mistakes you made in that six months?Even the Basis tracker is better than you and mine doesn’t even keep time let alone count steps. Still better.Older review:I loved the Fitbit flex, much more than other activity watches and bands. I originally bought two, but my husband’s stopped providing accurate information almost immediately and he switched to a Fitbit Force and he still loves it.I was not so lucky. I liked the general information that it gave but after a few months, it just went dead.I tried to contact the company through the website and never heard back.
Mjay –
LOVE this product! Exactly what I wanted and expected. Makes me so much more aware of my activity level, or lack there of! But just a heads up it works more like a pedometer when it comes to exercise.
Kaela king –
I love this Fitbit! Works wonderful and very good battery life! I wear it everyday and night, helps keep track of my steps well and also helps early in the morning with the silent alarm that vibrats when it’s time to wake up! I love it and highly recommend this awesome gadget to anyone!
Amrita Lakshmi –
Useful for tracking daily activities like walking, jogging or running. Also shows the sleep patterns over different timespans. The app is well-designed and the band looks good too.
John D –
Very good purchase. Information rec’d seems accurate. There are 2 points that I don’t like. I wear the large band and wear it loosely because that way I can slip it on and off since doing up the snap is a big problem! The 2nd issue is that the edges of the band seem to darken and discolour making thebandlook dirty. I guess black is a safer choice
Nicholas Baldry –
Oh yes, this device will cause a special kind of madness in you and your loved ones. More on that later, some of the basics first.The Fitbit Flex is very easy to set up. The app will walk you through syncing to your phone, setting up goals and connecting to friends. Once set up you can log steps counted (shocking for a pedometer, right), calorie burn from other exercise, food intake, water intake and sleep. It is comfortable to wear, the battery life is decent and frankly being able to work towards fitness targets is a great motivator so it keeps you accountable.Where does the madness lie, I hear you ask. Challenges.The in app challenges will turn normally quite sane friends and family members into step obsessed lunatics. They work by allowing you to invite your Fitbit friends to see who can get the most steps in a day, work week or weekend. During the challenge time you get updates on how you are doing verses the step totals of everyone else in the challenge. If your work buddy powers past you, you’ll get a notification through the app. Should you are your sister in law be neck and neck you’ll both get a message letting you know. If you are even a little bit competitive this can lead to mayhem.Let’s just say my wife and I are two people who don’t like losing, especially to each other. I have found Mrs B. walking in tight circles in the kitchen while cooking, just to up that step count a little higher. I have been known to slip out of the house to get a quick walk around the block in, in an effort to make sure that she doesn’t catch me. We’ve had reports of other family members watching TV while walking in place just to make sure they don’t fall behind on a challenge.Don’t get me wrong, the challenges are a lot of fun and really help you get more steps in which is great for your physical health. It’s just neighbors who have seen me aimlessly walking around our back yard while muttering about step counts have started avoiding me in the street.
varun –
Not worth it for the price.its been around 25 days since I bought this.the fitness tracking is all great but the real issue is battery. It’s so pathetic. U have to charge it every 3 days. Then there is xiomi mi band with my friend which he has to charge every one month only. On top of all this only after 15 odd days , the device continues to show incorrect indications. TheMi band is one fifth the price of this crappy device
Arjun –
As described, everything is good!Fitbit Flex is goodAs far as timing of the delivery was concerned, it didnt disappoint as it came on time as informed
Priyadarshini Shivanna –
Writing the feedback almost a year after purchasing the product.The activity tracker is precise but not impressed with the quality of the band.It gradually started tearing on both the sides ,very fragile
sherine –
The teal colour is pretty but gets dirty fast! But the product was as described and good. . . .
Linda M. Parsons –
I bought a Fitbit Flex from Amazon about a year ago. I finally lost it. The clasp is lousy and easily catches on clothes, or anything else that brushes up against it. I purchased a second Fitbit Flex. I tried to install it on my iPhone-but Fitbit sign in will not recognize my pw. I called the Fitbit company and they were unable to reset it or send an email. Something is seriously wrong with this company. They escalated it to a “higher department”, but they are so busy it will take 2 days. My bank, broker, etc sent a reset instantaneously-This company is not ready for prime time. I liked the Fitbit fine for recording my activity, etc., but the support is in the Dark Ages.I will purchase a buckle style wristband if I ever get this new Flex set up.
Cessa9870 –
1. I LOVE the fitbit.2. I like the interface.3. It’s helped me lose weight and keeps me motivated.Why 3 stars?4. I bought it in August of 2016 and now, less than a year later, it’s stopped working. I take very good care of it. It’s never gotten wet or dropped. I don’t overcharge it. For $7.50 a month it’s a good deal given I’ve easily underspent my normal food buying because I use the fitbit, BUT I would have expected it to last more than 10 months.Will I buy another? Yes because it helps me keep track of what I do each day.But I think they should last longer than 10 months.
Bobby Mathew –
Pro: Comfortable / Long Lasting (Purchased on Oct 2015) / Gives me the info I require.Con: Strap is weak, therefore it looses one star.
Brian Hart –
The essential pieces of the fitbit flex were in an already opened box; however, the manual or instruction manual was removed and replaced with a non relevant piece of literature.