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Polar Loop Activity and Sleep Tracker

by Polar
179 customer reviews
| 11 answered questions

Price: £51.95 - £154.99
Sale: Lower price available on select options
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  • Smart Coaching Features: Activity Guide; Activity Benefit; EnergyPointer, OwnCal(R) - Smart Calories;
  • 24/7 Activity Tracking, Activity Guide, Steps; Polar Flow Web Service and Mobile App Features;
  • Memory: 12 Days of Activity Data; Compatible with Polar H6 / H7 Bluetooth Smart Heart Rate Sensors;
  • Compatible with PC Windows XP, 7, 8, and Later and Polar Flow mobile app via Bluetooth Smart;
  • Compatible With Mac OS X 10.6, OS X 10.7, OS X 10.8, and Later; Waterproof; Warranty: 2 Years;

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Product details

  • Boxed-product Weight: 132 g
  • Delivery Destinations: Visit the Delivery Destinations Help page to see where this item can be delivered.
    Find out more about our Delivery Rates and Returns Policy
  • Manufacturer reference: 90047657
  • ASIN: B00RTMB45W
  • Date first available at 6 Feb. 2014
  • Average Customer Review: 3.8 out of 5 stars  See all reviews (179 customer reviews)
  • Amazon Bestsellers Rank: 1,881 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
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Product Description

The Polar Loop activity tracker offers the Activity Guide that enables you to monitor your physical activity 24/7 and helps you choose how to reach your daily goal. Another smart coaching feature of the tracker, the Activity Benefit, provides feedback on your daily, weekly and monthly activity, and the EnergyPointer guides you to help you get fit faster. The device also informs you about exactly how many calories you have burned, which is possible due to the Smart Calories feature. The tracker enables you to access the Polar Flow web service via Bluetooth(R) Smart and enjoy Polar Flow mobile app features. It is water resistant and comes with an LED display and a rechargeable battery with a custom USB cable.

From the Manufacturer

Polar Flow

Polar Flow web service and app help you stay on track with your daily activity and training.

  • Quick visual overview in the app
  • Free app compatible with Android (4.3 and later) and iOS
  • Deeper insight and analysis in the web service

Polar Loop

Activity Tracker

Polar Loop is perfect for anyone who wants to track their activity 24/7 and get guidance to reach activity goals. It tracks all the choices you make during the day and shows how they’re good for you. Polar Loop also reminds you when you’ve been still for too long.

To get even more out of your daily sports, Polar H7 heart rate sensor is an optional but perfect match for Polar Loop. Learn about your training and get smart guidance.

  • 24/7 activity tracking
  • Activity goal
  • Activity benefit
  • Inactivity alert
  • Sleep duration and quality
  • Heart rate with H7 heart rate sensor
  • USB charging
  • Polar Flow web service and app
  • MyFitnessPal integration (iOS only)

24/7 Activity

Polar Loop tracks your daily activity and shows steps, distance and burned calories. Polar Loop gives you your daily activity goal and guides you on how to reach it.

24/7 activity

Inactivity alert

Heart rate

Mobile app

Smart Coaching

Activity Benefit

Activity Benefit gives you daily, weekly and monthly feedback on the benefits of your activity and on the effects of sitting. The more you move, the greater the health benefits are. Check out how you're doing in Polar Flow app or view the detailed information on health benefits in Polar Flow web service.

Activity Goal

Polar Loop gives you your Activity Goal based on your personal data and choice of activity level. The activity goal bar on your device fills up during the day based on your activity. With practical guidance like ‘walk for 50 minutes or jog for 20 minutes’ you can choose how to reach your goal. Find more tips on how to reach your Activity Goal in Polar Flow app and web service.


EnergyPointer is an easy-to-use, heart rate-based feature that tells you whether the main effect of your training is burning fat or improving your fitness.

Smart Calories

Polar Loop has the most accurate calorie counter on the market. It calculates the number of calories you’ve burned based on your individual data: your weight, height, age, gender and the intensity of physical activity.

Polar FT4 Polar Loop Polar A300 Polar M400
Heart rate with H1/H7 sensor, also in water with H7 sensor with H7 sensor, also in water with H7 sensor
Smart calories
24/7 activity
Polar Flow web service and app
Sport profiles
Built-in GPS
Adjustable training views

Customer Questions & Answers

Customer Reviews

3.8 out of 5 stars

Most Helpful Customer Reviews

173 of 177 people found the following review helpful By donnelly5673 on 12 July 2014
Colour Name: BlackSize: One Size
Polar Loop, Love it! Took a bit of a plunge buying this as many of my questions were unanswered through searching the web, in this review i'll answer the questions I had, hopefully it'll be helpful. First of all I am not naive to fitness trackers, i've had fitbit flex, one, ultra and force; the basis band; body media fit and Jawbone up... Out of all these I prefer the Loop, why?

Accuracy: This seems far more accurate than any tracker i've used with a caveat: the bluetooth HRM. For basic movement tracking alone I think this works much better than the up, which as far as I can see only gives calories based on steps and consequently often ended up with a pathetic daily burn, and better than the fitbit which always seemed to over estimate. Add in the Bluetooth HRM and it ROCKS! Spinning, exercise classes, running, weights everything recorded with accuracy and great detail - trust it 100% Use this in conjunction with Myfitnesspal (more later) and I am now seeing the weight loss i expect.

Detail: As mentioned the detail given with the HRM is amazing, tells me time in different fitness zones, %fat burn vs fitness (if you believe that slightly antiquated idea) and accurate calorie burn.

iPhone app: Forget other older reviews where syncing is criticised, the new app and band upgrade have never failed me 100% sync success, the app work differently to fitbit etc and on the surface seems to give less detail but you can delve deeper within the app and the polar flow website, no complaints there, actually prefer it to other apps which although look more detailed actually offer less data.
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93 of 100 people found the following review helpful By Nikolay Nikolov on 3 April 2014
Colour Name: BlackSize: One Size Verified Purchase
I bought the Loop after reading the reviews on (the US, not the UK site). The thing that clinched the deal was one of the reviewers mentioning that the Loop can track the quality of your sleep. All the rest seemed to be, more or less, on a par with other products (jawbone, fitbit, etc.). It's not that I am having any issues with my sleep but I am a data scientist and have a thing for collecting data and inferring trends so I was fascinated by the idea that one device can continuously track vital data such as heart rate (if worn with a heart rate sensor), sleep and movement.

So I bought the Loop along with the H7 heart rate sensor and have been wearing the Loop for 3 weeks continuously. Here are my impressions:


- The band looks both elegant and sturdy
- It is easy to set up and synchronise with an app I installed on my mac (I connect it via the cable that comes with the Loop)
- I cannot comment on accuracy but heart rate values seem entirely plausible so I'll count it as a pro


- The indicator is not convenient to use

In order to see the time or the heart rate you have to press a button. If you wear the Loop continuously instead of a watch that's a major hassle. I cannot discreetly peek into it during a meeting as I could do with my watch. Everyone would notice that you are looking at the Loop as you have, to essentially, use both your hands to check the time. Same thing applies to checking your heart rate while running. Also, in bright sunlight it is very difficult to read the indicator.

- The Loop does not really track the quality of your sleep

To be fair, Polar did not claim that - it was a misleading review on that did.
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51 of 55 people found the following review helpful By Purpleheart TOP 100 REVIEWERVINE VOICE on 25 Aug. 2014
Colour Name: BlackSize: One Size Vine Customer Review of Free Product ( What's this? )
I am a big fan of fitness monitors as I find them hugely motivating for exercise and very useful for monitoring sleep. I have had the fitbt ultra, fitbit one and wear the fitbit flex daily. I recently compared the Garmin vivofit with the fitbit flex and when I had the opportunity to review the Polar loop I was delighted as I have used a Polar RS300x Black, Running Series HRM and a Polar H7 Bluetooth 4.0 Heart Rate Sensor Set for iPhone 4S/5 and was looking forward to seeing how they would work together. My left wrist is currently sporting both myFitbit Flex Wireless Activity Tracker & Sleep Wristband and my Health & Fitness Calories Burned Monitor Bluetooth Heart Rate Sensors Polar Loop so that I can do a direct comparison.

Actually getting the Polar loop onto my wrist was a bit daunting as you have to cut the wrist band to size and then fit the buckle. It worked fine but was far less easy than the other fitness monitors to get going, although the rest of the set up was straightforward.


+ Polar loop can be linked to a HRM so you can analyse your activity data
+ Polar loop links to Polar flow. The heart rate band picks up higher heart rates and logs them as activities.
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