The page that shows the amount of Anaerobic, High Aerobic, and Low Aerobic isn't useful when I've surpassed the recommended range. When the white dotted line is on black it's easy to see, but when I've overshot it (so the full dotted line range is inside the colored statue bar), I find it near impossible to see. It seem good to know if I've surpassed it a little bit or blown way past it.
Right now I do a screen shot and then zoom in a lot to make out where that faint dotted line is.
I would attach an image but this form doesn't seem set up to allow images to be attached from an iphone.