So today I wore My Apple watch to work. I spent all day showing it off including making phone calls from the watch using siri etc. I stared the day off with a full charge on my iPhone 6 and watch. My watch in my department could use the wireless network and I could make phone calls from everywhere. Also used my watch to pay for groceries at whole foods! My iPhone 13 hours later has 90% of its charge! The apple watch is at 34% I am extremely impressed!!!