I was delighted at how easy this watch was to setup, and anxious to use it. I read instructions and followed setup instructions and watched it Load Satellites very quickly. I set it out to use the next day, but when I picked it up to use the next morning, I received a Low Battery message and it promptly died. I now have to get a battery replacement and am frustrated that I wasn't able to even use the watch until I replace the battery. After I get new batteries, I will know more about how the watch functions... Seems pretty poor quality that batteries don't work 1 day after you purchase the item!