Polar Unisex Bluetooth Smart Stride Sensor, Black, One Size, 91053153

Great product works very well with the polar beat iphone app, but that is where it ends as so far I have not found any of my other apps support it, which includes Endomundo and Pear. I have therefore found I do not use it as the Polar app just does not offer enough.

I ordered this to use with the Zwift app, and it does the job very well. The pod fits well in it's holder and I don't notice it when I run. A good buy.

Works out of the box with Zwift. Comparing to the speed on the treadmill it seems to be a little generous with the speed up to 10km/h then spot on from 10+. I’ve tried calibration but it seems to make no difference. I’m happy enough with the accuracy though. In fairness it might be the treadmill that’s running faster than indicated! Q

I purchased this as an add on to go with my newly acquired V800 watch and am very pleased with it. A little stab of fear when the packaging said 'compatible with iphone' (or something like that) but never fear, setup with the watch was trivially easy and took but seconds.In use it opens up new options on the V800 and provides MUCH better view of pace as you run - immediate feedback and no erroneous readings due to GPS errors from tall buildings or whatever. (Incidentally, in contrast to what you may read elsewhere, the V800 allows you to choose whether to use the stride sensor or GPS for speed info). I imagine the same would be true for any user running with an iphone instead of a watch as their training computer.Accuracy wise, it did take a little bit more calibration to bed in than I expected but this can be done both automatically via the GPS and manually. Different calibration settings can be stored by sport eg treadmill running, road running, etc. which I thought is pretty good and helps to optimize accuracy (on the V800).

Does not work with polar beat as advertised!!!I contacted polar costumer service and they told me it is only supported by iphone, not android!Polar suggested the app MapMyRun, but it also didn't recognise it. Tried runkeepee, also does not work.It is a waste of time for android users, no app...Would give 0 stars if it was a option.

Absolutely essential for my treadmill and zwift app. Accurate as well.

I bought this to use zwift on a treadmill. It works well with the ipad, however it still does not pair with android, so it means that I cannot use it on the larger screen of my laptop, as Zwift on pc requires the bluetooth connection through a phone.Aside from that, it is larger than expected and other devices I've seen, but does seem to track my pace on the treadmill fairly well - it seems t have a delay getting up-to speed.It also only comes with one holder, which is a pain if you want to use it on multiple shoes.

works well on blue tooth plus to i pad using virtual runner ap