FitBit Flex Review

What is the FitBit Flex?

If you haven’t heard of the Fitbit Flex, firstly where have you been hiding? It’s a cool little activity & sleep tracker. You can use it to track your steps, exercise, calories burnt, calories eaten & your sleep activity (or in my case lack of!).  I’ve been wearing mine non stop, it’s just like wearing a watch I just don’t realise it’s on my wrist any more so it’s great. It’s really sleek in design, I was tempted on the pink version but I’m glad I got the black as it blends with any outfit and is less noticeable. The pink would’ve looked good with my gym gear but the black is definitely more ‘every day’.

Getting Started

It’s so simple to get started with the FitBit Flex, the little wireless receiver needs charging first by inserting it into the dongle & either plugging it into a computer or USB plug. The little LED lights on the front light up to show how much of the battery is being charged. Considering it is on all the time, it actually doesn’t need charging that often, I charge mine once a week.

My hands & wrists are really small, I generally can’t get bracelets to fit and have to get my watches adjusted so it’s fab that you get two wristbands in the box, in small & large. The clasp is really secure too so it won’t be popping off in the gym, although little toddler fingers can pull it off your wrist but we all know they can get hold of anything they want!

My Thoughts

I’ve got to admit that I absolutely love it. I’m pretty active anyway & love being out & about with my little man and the dog, out walking in the park & down the old country tracks.  One thing I was concerned about was the accuracy when pushing a buggy. I needn’t have worried though. I tracked my steps walking to nursery with Archie in the buggy & walked 1034 steps. I then tracked the walk back home minus the buggy & did 1106 steps. There is a slight difference but you wouldn’t expect to do the exact same footsteps.

There’s no screen on the FitBit but it is still easy to see your progress throughout the day, just a little tap on the band lights up the little LED lights. The more that light up the closer to your steps goal for that day. You are able to change your goal via the app, you can choose to focus on steps, distance, calories or active minutes so there’s something to suit everyone.

One thing that has confused me a little is the ‘active minutes’, there seems to be some difference even though my steps & distance are very similar, but I think this may be when I’ve been to the gym it’s increased the active minutes. The main things I focus on are steps & calories to make sure I’m hitting my targets for each day so the number of active minutes doesn’t really affect me.

I personally have decided not to track my food/calorie intake on the FtitBit app as the range of foods just isn’t wide enough. You will need to change the ‘advanced settings’ on the app for the UK but even then it just doesn’t have the same range as MyFitnessPal. You can link MyFitnessPal to the FitBit so it’s easy enough, they sync via WiFi so once you’ve connected the two they sync automatically.

Sleep tracking

This has been a brilliant feature for me, especially as I have to keep a sleep diary for Archie due to his Autism & Sleep Problems. I know exactly how many times I’ve been up in the night so no more forgetting in a half asleep daze! I know some people that have put their FitBit into sleep mode by accident. You normally put it into sleep mode by using the app or tapping three times. I’ve only done this once, you can see below where it went into sleep mode but says I never actually slept, obviously! It’s also great you get a weekly email which gives your average number of times woken in the night & hours slept.

By looking at my sleep pattern & comparing it too Archie’s various day’s activities I can easily see which nights he’s slept better and figure out what we did that day that might have helped. I’ll be putting screen shots in Archie’s sleep diary ready for the paediatrician too as I think sometimes people must think I exaggerate when I say Archie wakes up to 10 times most nights!

Overall I’m really happy with the FitBit Flex. I love that I can easily keep track of my activity and know what you’ve done throughout the day (& night). If I’m not quite near my target I can just head out for a little walk to increase my steps. It definitely makes you more aware of the calories you’re putting in & working out. Hopefully this will give me a little boost to shift those last few stubborn pounds as it makes you feel much more accountable.

Have you tried the FitBit Flex or any other activity tracker?

*PR Sample



  1. April 7, 2015 / 7:47 pm

    I’ve got the fitbit zip and I love it. I didn’t go for the flex as I didn’t want to wear a wristband, I also don’t need a sleep tracker to tell me that I’ve been woken up by a two year old!

    I find that wearing it makes me push on and do some extra steps to get me to my 10k which is great.

    Active minutes are only added when you move at a higher pace. I find I have more active minutes when I’m walking alone than with the boys as I walk much faster by myself.

  2. Mum Tum Diaries
    April 13, 2015 / 4:31 pm

    I have one of these on my birthday list! I’ve seen so many posts about people using them, not all positive, but its great to know it actually does work and you can sync it with MyFitnessPal! 🙂

    • April 13, 2015 / 9:49 pm

      It definitely depends on what you want you want from a fitness tracker. I know some people disappointed that it doesn’t track all their workouts like a Polar watch does but others love it for the sleep tracking & syncing with other apps. For me it’s just what I wanted 🙂
      gymbunnymummy recently posted…Dear Mr Potato Head… You’re an arse!My Profile

  3. April 14, 2015 / 9:14 pm

    Have a look on ebay and you can get some funky wristbands for them – I have a very floral Cath Kidston-esque one now as the kids I teach told me that the black one made me look like I was on release from prison! #bloggingtojogging

  4. April 14, 2015 / 9:43 pm

    I could really do with a tracker watch of some kind. I had been using a pedometer which was ok-ish, but just not accurate enough. I like the idea of linking it with MyFitnessPal too because I’ve just started using that.

  5. April 15, 2015 / 1:28 pm

    I love my FitBit Flex, it has just become second nature now! I do not use it at night time so do take it off but my immediate reaction when I wake up is to put it back on again. Love the fact it links up with MyFitnessPal and yes for sure the active minutes are when you are being more active than simply walking. Notice a huge hike when I am at the gym! Sim #WeightLossWednesday x
    Sim @ recently posted…Weight Loss Wednesday Linky – Week 15 #WeightLossWednesdayMy Profile

  6. April 20, 2015 / 8:30 am

    I’m glad you’re getting on well with the, I desperately want one but simply don’t have any spare cash at the moment! It’s good that you can link it with your other app too.Thanks for linking up with #BloggingToJogging xx
    Hannah Budding Smiles recently posted…From Blogging To Jogging – Week 16My Profile

  7. August 27, 2015 / 2:27 pm

    I would like to use fitbit, especially after knowing it’s amazing features. The sleep diary is really useful to know about the sleep patterns… After reading this blog i have decided to get fitbit . Thanks for this outstanding blog.

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