Yeah I tried it as well after I posted this morning. It seems like we have to leave it open in the background. Also I know this is a different topic but does your band seem to be ridiculous at measuring heart rate? Sometimes it seems right and then it shoots to 140 when resting and has to keep trying to "acquire" your heart rate?
yes, sometimes when i try to see what my current heart rate is, i've seen it say as high as 160's; however, when i go to the graphs in the app, it never shows them that high, so i think it's working ok for me.
i just went to acquire my heart rate and it was around 60's-70's which should be pretty accurate.
also an update on weather and stocks update intervals:
yesterday i kept an eye on it and it seemed to update stocks every 20-30 minutes with the app running in the background.
weather on the other hand updates much less frequently, maybe every hour and a half? i'll keep an eye on it more today. i've started a sheet on my computer so i can document all of the times it updates.