Polar Loop Activity Tracker Review (and Fitbit Flex comparison)

I must admit that I was incredibly excited to get my hands on a Polar Loop activity tracker and be able to put it through its paces for a review - I was previously dedicated to my Fitbit Flex and used that to track my sleep and levels of activity so I wanted to see how this tracker would shape up.  As you might have seen, I've been really dedicated to exercise and keeping active lately, so this would be a great tool to see just how active I'd been, and help me keep motivated.

But what is an activity tracker?

The activity tracker market is booming at the moment, with the Nike Fuel Band, Fitbit Flex and Jawbone UP to name a few.  The function of all of these trackers is to provide you with information on your levels of activity throughout the day - they are usually worn on your wrist and work via motion trackers.  They work really well as a motivational tool - letting you know when you've reached your activity goal, with several of them offering extra functions like monitoring your sleep and connecting to apps for real-time tracking.  Some of them you can also link up to other tools like MyFitnessPal to track your calories and map it against your activity.

I'd been wearing my Fitbit Flex on most days for several weeks prior to receiving the Polar Loop from Nigel O'Hara so I was in a good position to be able to road test the Loop as well as compare it with its main competitor.

Polar Loop review

Getting started with the Polar Loop

You have to cut the strap down to size to begin with prior to use, which was slightly scary! You measure your wrist using the ruler and then cutoff the strap until it fits snugly (I made Tom do this, I was too scared!) It takes about 15-20 minutes to get to full charge and then you're good to go.  I really like the sleek, black, style, it felt more like a chunky bracelet than a fitness tracker, which was a massive win.  My Fitbit Flex is bright pink and looks more plastic-y so the Loop definitely wins points for being more discreet.

Once it's charged via USB it also installs the software onto your computer and you can sync the Loop and add your personal details into the Polar Flow website.  This gives you more personalised tracking data and you can change settings like the time format and which hand you're wearing it on.

What information does it give you?

All of the indications on the tracker are controlled by the 'touch button', a symbol on the tracker that given a light touch, will scroll through the different options (I had to Google 'Where is the touch button' to begin with as it's so discreet!).  It will tell you the time (meaning you don't have to wear a watch as well as the tracker, which is another bonus), how many steps you've taken, how many calories you've burned, and how far you are towards your activity goal.  This is shown using a battery bar graphic, so when the battery is full you've reached your goal (it tops up throughout the day as you undertake activity).

The other cool thing about the activity indicator is that it tells you what you'd need to do to meet your activity goal - so it might tell you that you'd need to jog for 10 minutes (or do high impact activity), or walk for 40 minutes (or another medium impact activity), or 'up' which indicates underaking low impact activity for say, 2 hours.  It's a great way to keep you motivated and it has worked for me - when I realise I'm nowhere near my activity goal I'll go out for a walk after dinner or make an effort to have a more active evening rather than sitting on the sofa.

Polar Loop review

It also gives you 'inactivity alerts' when you've been inactive for over an hour, flashing on the LCD to alert you to get moving.  If you have your Loop synced to the mobile app you'll also get a notification on your phone.

More detailed activity information - Polar Flow app and website

The Polar Flow app is a really useful tool in seeing more in depth activity data whilst you're on the go.  It connects via bluetooth to your phone and allows you to delve a bit deeper into your day's activity, seeing how well you slept, seeing your activity on a clock graphic so you can see how it fluctuated throughout the day, and giving you suggestions for exercises and activities to meet your goal.  The Polar Flow online portal shows you a calendar of all of your different activity levels - this is mine for June, you can see that I started wearing the tracker on the evening of the 7th.

My best day was the 22nd when I doubled my activity goal - whoop! It's also useful to get insight into your more active days and when you need to step it up (looks like weekends are my laziest times, apart from the 22nd!)  The yellow triangles are the days when I had inactivity alerts - I'm pleased that there were only four days when I sat for longer than an hour! 

What is it good for, and what types of activity can it measure?

It's really good for running as it's very accurate at calculating (using its own motion analysis technology) the amount of time that you spent running (you can see this in more depth on the app).  I've worn it constantly for the last few weeks apart from when it's been charging so it's tracked all of my runs.  Obviously it doesn't have GPS so it can only track the time you spent running, rather than distance.

Polar Flow review

Naturally the way it interprets the motion using an accelerometer means that it's very good at tracking certain activity like walking and running, but not so much at less obvious motion like cycling, weights or yoga etc.  It indicated that I'd been more active on days when I did a workout DVD or a very movement filled workout, but not when I'd been cycling or doing kettlebell.  The only way you could track this is by buying the bluetooth heart rate sensor (£41.08) and connecting it to the Loop.  You wouldn't want to wear the heart rate monitor all day, but it would be good for those activity sessions which it finds it more challenging to track.

So, is it any good?

Overall I must say that I absolutely love the Polar Loop and will definitely be sticking to this over my Fitbit Flex.  It is a really powerful motivational tool and great for getting you off your bum on those days when you're not feeling as active.  It's also really interesting to get data you'd never normally be able to track, like how well you've slept, and how active you are over a weekly or monthly view (I must watch those lazy Saturdays!). My only gripe with it would be that it wasn't always perfect at syncing to the iPhone app but as soon as you sync it with the computer via USB it automatically updates.  The battery life is good - it lasts about three days without a charge and then goes back to full battery within about 15 minutes.  I also think it's really good value - it retails at around £70, which isn't bad for such a nifty piece of kit.  I'd definitely recommend it if you're looking for an easy way to track steps, calories burned and levels of activity, particularly if your preferred methods of activity involve walking or running.

Have you ever tried any of the activity trackers? Do you find them motivating?

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  1. Very interesting gadget, looks very good and seems to be useful!
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  2. This looks really great, I have a Polar FT60 watch and I absolutely love it but obv only wear it for the gym and classes etc, then I manually input the data into my MFP app which is sort of working to record things, but it's time-consuming and I'd really like to be able to track everything together.
    Going to seriously consider saving up for one of these, as I'd been wondering about fitbit, which I'd heard a lot about, but this would be better as I already have the HRM strap which i think would be compatible.

  3. This sounds really good, never heard of it before - but I'll have to give it a try! :)
    Looks good aswell - which is a nice surprise! :)
    Anna xx

  4. Thanks for the thorough review - I've been tempted by trying a fitness tracker/monitor for ages (I remember getting a free pedometer when I was a teenager and I loved watching my step count go up) but I don't like the fact you have to wear them so visibly all day. The fact that this one is quite discreet makes it more appealing :) x

  5. Thanks for your review.

    One thing it does best: it counts the steps perfectly, other that that is kinda useless with an Android phone.
    - counting the steps is accurate (compared with other devices)
    - water resistant
    - light and resistant
    - battery life 3-4 days
    - no notification on device, in my case using Android phone, no notification on the phone unless I manually sync it then I come to know that I didn't move for more then 2h ... kinda defies the purpose
    - cutting the band, to make it fit ... 30 min of cutting and testing, of sweating and fear of making a mistake.
    - I bought mine in April ... their website is still in BETA ...
    - Polar websites does not share data between them (Polar Flow and Polar Beat) so heart rate data from Polar H7 is in one or another.
    - proprietary USB charger cable,
    - bulky locking clip. I use it on my right hand and every time I use a computer mouse it creates pressure on my wrist, so I have to push it back on my wrist ... super annoying.

    My wife and I use Polar for many years ... but this is a big disappointment. I bought Loop to have the same polar ecosystem benefits, but all I get is data duplication on my personalpolartraining website.


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