Apple, Inc. is set to blow past its record for first-weekend sales for the latest iPhones series. iPhone 6S and iPhone 6S Plus versions are scheduled to go one sale at the technology giant’s retail stores at 8 a.m. local time on Friday, September 25. Last year, the company had breached 10 million mark in sales of iPhone 6 and 6 Plus within three days of its launch on September 19, 2014.