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PowerTap PowerCal Heart Rate Monitor

USD 99.49

RRP $117.49


Save: $18.00

3.0 Stars 3 Reviews

Item limited to max quantity of 5000

( 0 item is in your basket items are in your cart )

Usually despatched within 2 weeks.

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Average connection time 25 secs

Average connection time 25 secs


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.


  • First-ever power meter calculated from heart rate.
  • Most affordable way to begin power training.
  • Compatible with Bluetooth only.


  • Signal Transmission: Bluetooth (Cycling Power Service, Heart Rate Service, Device Info Service) or ANT+ (2.4 GHz)
  • Operational Temperature: 0-40C/32-103F
  • Battery Type: CR2032
  • Battery Life: 400 Operational Hours
  • The PowerCal is not a waterproof device and should not be submerged in water
  • PowerCal Bluetooth is compatible with current generation android and iPhone/iPad devices with the use of certain apps.
  • PowerCal Bluetooth is not compatible with cervos (little yellow computer) or older grey indoor cycle consoles.

How long will it take to arrive?

Please check the stock availability notice on your item when placing your order. This item is: Usually despatched within 2 weeks..

How will I know it has been sent

You will receive an email to confirm when your item has been sent.

You can also check the status of your order and individual items by accessing your account details and following the prompts.

Please allow 10 working days from the shipping date of your order before notifying us of any late deliveries.

It may be advisable to check with your neighbors to see if your delivery has been left with them, check any places it could be left such as: garage, porch, or behind garbage cans if it was too big to fit through your mailbox. Contact your local post office to see if the item has been returned to the depot as undelivered and awaiting collection.

If I'm not completely happy with my item?

Please see our returns policy.

Customer Reviews


3 Reviews

5 Stars 0
4 Stars 2
3 Stars 0
2 Stars 0
1 Stars 1

Top Customer Reviews

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.

Random Number Generator

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.

Useful training aid

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.

Not bad for what it is

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).

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