FWIW, I have had the Frontier X2 for the past 3-4 months. I intend no disrespect to Frontier. I also want to be candid: their customer service leaves a whole lot to be desired. E.g., putting up a post as to a topic, and, it was in moderation limbo. It never did get “moderated.” And it had to be with a serious issue of assessing the significance of PSVT events. The Heart Program subscription for $150 a month left me in limbo awaiting the link that would have allowed me actually to get a Cardiologist to provide commentary on that issue. So, I quit that program.
The HR monitor itself is a heart rate monitor. Cardiac Strain is a proprietary metric based upon data they own, if I understand their site correctly. The device itself appears far more susceptible to artifact than either my Polar H10, but especially compared with the rock solid Movesense Medical device. FWIW, each of those devices can provide realtime ECG while doing a workout.
The recommendations for upcoming workouts are insipid, so I won’t take up bandwidth, and that’s especially true if you’ve been working out on programs like www.xertonline.com or you have your own coach or you are familiar with PerfPro.
End of story: I’ve quit using it, relying instead on the data from VO2 Master to provide connections to all my sensors, to include my Smart bike from Wahoo, two Moxy monitors, my Movesense MD HR monitor and I get power, cadence, speed from either the Kick or my Assioma pedals.
I wasted $500 on Frontier. You can also do a YouTube video search to find out what other folks have had to say about their use of the program.
Hope this helps, Anthony
