It will eventually catch up and record the right heart rate, but by then I'm half way done.

Heart monitor works great

Relatively accurate heart rate while running, however, has issues monitoring a heart rate with cross training exercises that require bending of the wrist (push-ups, pull-ups, rowing)

And sometimes...in fact a lot of times I end up just running without GPS...which kind of stinks because for someone who likes the data...it kind of feels like the run "didn't count"...as odd as that sounds