Polar H10 Heart Rate Monitor – ANT Plus, Bluetooth - Waterproof HR Sensor with Chest Strap - Built-in memory, Software updates

Looks to be well built with fast connection and a good price. Will help fitness improve no doubt and is comfortable and works well. Designed to be worn under clothing too. Hopefully lasts a long time.

The item arrived in a nice efficient package and was easily unpacked. Adjusting the strap is very straightforward and, once suitably modified, the strap is comfortable to wear after the initial shock of the cool pads passes.I found pairing the device to both the polar apps and the QZ app I use for my spin bike very straightforward and have had no issues with the device being automatically picked up on subsequent workouts.I bought this primarily for the reliability of the monitoring and open nature of conenction (i.e. being able to easily pair it to third party apps/devices) and I'm happy this has lived up to the promise on both counts. The monitoring element is more accurate than the optical monitor I had in my Pixel watch so I'm happy that my workouts are now being more accurately tracked and heart zone based training is more easily tracked now.The Polar apps themselves seem a bit rudimentary but, as noted, you don't have to use them for anything meaningful besides adjusting device settings and applying updates. That's going to be such an infrequent activity that I'm not counting it against the device.At the sale price of ~£60 this is an easy recommendation to anyone needing an open, accurate HR monitor.

****Review update**** I originally gave this product 3 stars - I was having mixed results with it. I assumed that this HRM was not able to maintain and record bluetooth and 5Ghz "gymlink" connections at the same time. I would switch the app on (polar or wazoo) in my gym. The PRECOR gym kit would show my HR, but when I checked the app, it showed significant drop outs.I RESOLVED this. It transpired that this was a power management issue on my phone, if I was using Spotify/Netflix at the same time, my phone was not running HR tracker apps in the background. My phone is a Huawei P30 Pro - I went to settings>Battery>App Launch and turned off "Manage Automatically" for each fitness app. Now it appears to operate flawlessly. Both for CV and resistance workout. Now - I give this 5 STARSThe Polar H10 features a suite of connectivity options as follows;- ANT+ - which is a Garmin product, and I've yet to find a use for it. I own no compatible equipment.- Bluetooth - great - can support 2 devices simultaneously.- 5ghz "gymlink" - which can connect to some gym equipment eg. PrecorIn the Polar app you can switch each of these off - I guess this would save power. I cant comment on battery life - not used it for long enough but polar app shows it as "FULL" after 8-10 hours training.The strap is not one of the generic ones, has a plastic clip to connect it together, which I hope will hold up. The cheaper ones have a metal clip.The Polar app is more than sufficient for me - provides a number of profiles for different activities. And a good HR readout is provided at the end, and you can easily see the HR zones as you train. Ive also tried it with Strava, MapMyRun, and Wazoo. All with good results.I cant comment on water resistance - others have commented on this, but I do not swim with this on.

So far, it does what it’s supposed to do - measure my HR. It connects to the gym equipment I use so I can see my HR at that moment and the Polar Beats app allows me to view my HR through a workout in the different training zones. 2 frustrations, I can’t allows find a pre-installed workout that matches what I’m actually doing e.g. stairmaster aka mountain climber and the app doesn’t allows sync my workout with Apple Fitness. It can be forced sometimes but you can end up with a double workout….

So the H10 is very good heart rate monitor. Works well during exercise, stretching, running, hiking and martial arts - generally fits nicely and snugly on the chest during all physical activity - that you can forget that it is on.Connection with smartphone during recording exercise - it is very well, it can loose connection if you are using other app requiring the GPS access, then you need to refresh the app (polar beat - just refresh) as other wise it will stop working due to some issues with multitasking and sharing processing at the smart phone. Alto it is work well if you use option of the recording the exercise with the H10 heart sensor and download after you finish. IT works well with watch, no problem at all, no loosing signal, very accurate.The software and app is extremely good and user friendly, providing very good analytical data, and information which you need in nice easy to read format. Compared to the Sunnto, and Garmin software - the way how the data is collected and presented was winner for me to choose the Polar chest heart rate H10.As did not have chance to test it in the water as the swimming - can not comment on that. It works well at the rain and storm weather when you are completely soaked tho :)The strap itself is good size with length regulation. Is has some silicon bumps which helps to keep it nice and comfortable in one place, so it not move around during the high activity exercises.It is very easy to change battery - which make this product last very long.Tested it connected to the watch and smartphone at the same time as it support simultaneously twin connection into the two devices at the same time!!! as well as it can work with one device, and on its own, no need to take phone with you - if you click in the app start recording with the sensor rather life recording with the app, then you can just go with the sensor and when you finish just download the information to the phone.So yes I would recommend it.