The Garmin uses a different altitude value based on both barometric pressure and GPS while the Joule uses just barometric pressure. Additionally, the Garmin and Joule use different averaging routines to calculate feet gained and lost.
Articles in this section
- Can I pair more than 1 power meter to my computer?
- Why is the data different between Garmin and PowerTap CPU?
- Why is the "feet gained" different than a Garmin?
- What do VAM, Normalized Power, IF and TSS mean and what do I do with them?
- How much memory does the PowerTap computer have available?
- Why do I have no display on my computer?