Average connection time 25 secs
Average connection time 25 secs
WHY CHOOSE BETWEEN MEASURING POWER AND HEART RATE?
Capture both data points with one heart rate strap, thanks to the PowerTap PowerCal. It's the world’s first-ever power meter calculated from heart rate and is the easiest, most accessible way to begin training with power. Simply connect to your Bluetooth device of choice, begin your training and unlock never-before-seen data to help elevate your training.
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Where reviews refer to foods or cosmetic products, results may vary from person to person. Customer reviews are independent and do not represent the views of The Hut Group.
I have the first generation of the POwercal. It generates power figures which are often half the actual values I'm producing, as measured using two direct force power meters. In other words the values produced are completely useless. The first version could be calibrated by the user. This allowed the user to download a file to the Powercal containing actual heart rate and power data, thereby giving the Powercal some idea of the amount of power I could generate for a given heart rate. After spending hours fiddling about with the parameters I managed to get my Powercal to produce figures which did have some relationship to my actual power - though one not a very close one. Apparently this user configuration is not possible with the latest version. Given the fall in the price of real power meters, my advice would be to buy a genuine, direct force power meter. My two direct force power meters are both from Powertap (G3 and P1). Both are excellent. It's a surprise that Powertap have released a product as flaky as the Powercal.
This version of the Powercal is not as good as the original PowerCal Ant+ version which could be calibrated to match your heart rate characteristics. Now I am well into my Vets years my heart rate is a lot lower for the same power than 20 odd years ago. When I compare the PowerCal to my Stages PM it follows the power fluctuations quite well but reports the power at around 50W less than the Stages PM. As long as you accept that absolute power values may not be correct for you it can still be a very useful training aid and is easily used on multiple bikes.
I use a heart rate monitor and crank-based power meters all the time. So why this? Well I wanted something that I could use when away on holiday using an exercise bike in a gym and that would allow me to use Zwift to reduce the tedium. This does the job nicely. The power readings are somewhat random, rather like those made up by Strava, But they're okay enough and mean that I don't have to stare at a blank wall or a Boring Garmin monitor. Glad that I found this really (the alternative would be to take a pedal based power meter and swap the pedals over - not really what I wanted to be doing).