The Frontier X2 is a great product and their response to my query was very fast and effective.

I've been using this since, oh, god-knows-when. Sure, it can be temperamental, but once they guide you around how to reboot the device, etc. the data you get from it is a joy. Sure, some of it is algorithm-driven, but overall it provides a far more complete picture of your exercise routine and overall cardiac health when exercising. My only complaint is that I'd like a wrist mounted display of the main parameters (HR, HRV, QTc, body shock, breathing). Surely this is possible? I'd pay for it!

Only using X2 for a week and need to learn / read lots more to better understand what i'm reading, but at least now i have the data i can investigate. Asked some questions to support and they suggest to have introductory call . I spoke with Pavan DS who has covered all my questions very quickly, it was very productive call with knowledgable person. on some medical question her offered separate call. Very impress with the company and device.

I have had two, v1 and v2. Both have been at best adequate over the years I have used them to monitor my heart rhythm. The idea is a good one to be fair and it should work. The truth is the results are mixed. I spend more time talking to customer support about dubious recording results than I should for a device of this price band. It's very buggy, needs a lot of resets and hard resets to function "properly" and honestly as I gather most of its results are software driven that just doesn't work that well., I just don't trust the results now enough to send to my cardiologist, which completely defeats the point. And that's just for rhythm. I asked a question on breathing rate, namely why, when I control my breathing to slow, even breaths while doing endurance it doesn't record that slow down, I was told it can't. So I'm reality that's just a gimmick and again can't be used as the data isn't a accurate. I have it 2 stars as it does, while dropping out regularly, function ok as a heart rate monitor and being rechargeable is usefull. Previous comprehensive review an score was 4/5 then dropped to 3/5 following furtther use. Personally I would not buy again nor recommend after years of use.

I have a cardiac conduction abnormality (Rate-Related Left Bundle Branch Block) and my cardiologist suggested getting an over-the-counter device that would allow me to see my ECG in real time, so I could modify my workouts as needed, evaluate whether medication trials were working, etc. All the other devices I looked at required stopping your workout and holding the device in your hands in order to get a 30-second ecg, which was not going to work for me, or they had cumbersome stick-on patches, etc.. The Frontier X2 uses a simple chest-strap mounted device and allows me to monitor my ECG in real time when I mountain bike (phone mounted to my handlebars) or, for activities where I can't mount/view my phone, to review the ECG recording after the workout is complete. My cardiologist was impressed with the clarity of the ECG recording, and I find it very easy to review the ECG recordings after a workout. I do wish that a couple of small details were different (I wish we could edit the training load goals to be specific to our workout plans, and it would be nice if workouts recorded through "ECG streaming" would report zone minutes, as do workouts recorded by choosing "start activity"), but these are small details and overall the product deserves 5 stars. In addition, I had a question about receiving inaccurate data when I run, and customer support was quick and helpful (it seems that some women will need to wear the chest strap above rather than below the breasts for optimal positioning for ECG recording, especially in higher-motion sports such as running). In short, I am extremely satisfied with my Frontier X2.

I have a family history of heart problems, so when my cardiologist (also a data geek) told me about the X2, I was immediately interested. It was comforting to know that when something felt seriously 'off' in a few workouts, I could send my MD the data and he could tell me if there was a problem. In my case, the data suggested overtraining, not a CV issue. That was a huge help in figuring out how to proceed.

Great communications after posting my problem on the community forum, of bad ECG’s after a year. The development team worked with me to eliminate all known problems, but eventually sent me a new unit, which is working very well now!

Really positive and helpful agent. Started on live chat, but he realised I needed more and phoned me. He then went through updating, and several other stages to make sure my X2 was working correctly. Very patient, and stayed on the line throughout. Answered all my questions clearly and satisfactorily. An excellent proactive person to deal with.

I had a very interesting overview on product and features held by a smart guy of the assistance: Vijay Kumar. He was so good, I immediatly ordered the product. I'm eager to receive it and use it!

I bought this X2 as an upgrade from my Polar H10 and boy, what an upgrade it is!!! I’m an information loving person, there’s no such thing as too much info, and the X2 absolutely provides the most possible for this type of monitor. I wound up with an FX2, the upgraded version of the X2 that has the magnetic charging plug and counts calories too! You will want this upgraded version if you want hassle free charging with no possibility of damaging the unit with constant plugging and unplugging of a USB Mini so be sure to ask for the FX2 before you buy!!