I use it when I do HIIT on a treadmill. It's really nice because I can just put my iPhone right in front of me on the treadmill and see which heart rate zone I'm in vs. which one I need to be in. If I tried to look at the Watch instead, I would fall off the treadmill like 18 times.
Seems like it automatically turns off after somewhere between 2 and 5 minutes. I have to start it again which is difficult, annoying, and maybe even dangerous. This happens even when my iPhone's autolock time is set to 'Never'.
Anyone know how to keep it going?
Seems like it automatically turns off after somewhere between 2 and 5 minutes. I have to start it again which is difficult, annoying, and maybe even dangerous. This happens even when my iPhone's autolock time is set to 'Never'.
Anyone know how to keep it going?