Yeah, literally EVERYONE else uses power data if it's available. I don't know what Wahoo's thinking is, but it's ridiculous.
This morning was 21 miles, 600kj, average HR 105 (47% intensity,) and Wahoo gave me 280kcal.
Thursday was 20 miles, 740kj, average HR 128 (66% intensity) and Wahoo figured 813kcal, which is almost exactly kJ x 1.1, which is what Garmin, etc all use.
Tuesday was 28 miles, 977kj, average HR 135 (68% intensity) and Wahoo figured 1,232kcal, which might as well be a made up number.
So apparently, If I ride with an average HR 125-130bpm, Wahoo will get at the least reasonably close. But drop below 120 or go above 130 and might as well just guess. Efforts above 70% are like 800-900kcal per hour.
Now I do have power, so I know what's what-- but I'm also a slave to the damn Activity Rings on my Apple Watch, and end up doing a lot to close them when Wahoo is giving me half on calorie burn.
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