Buyers said that the iPhone has an "extraordinary demand" among all smartphone users. But Wall Street analysts are challenging that hardware updates and software inclusion, including a well-reviewed voice-recognition software system, will pull in buyers.
Meanwhile, AT&T, Version, Wireless and Sprint had started taking US online orders for the iPhone from Sept 7. The comparison between the iPhones are difficult as it is now carried out by three wireless operators. Last year it was only carried by AT&T. In comparison to previous generation smartphones, the iPhone 4S was the fastest selling mobile handset in Apple's history as it sold 1.7 million devices in the first three days.
Experts estimate to sell about 27 million to 28 million iPhones in Oct-Dec qurater. The latest iPhone 4S is expected to hit the market of US, Australia, Canada, France, Germany, Japan, and the U.K on Oct 14. The device is based on Google Inc's Android such as Samsung's Galaxy and features the A5 processor, an 8-megapixel camera, an new antenna design and Siri voice recognition technology.
Steve Jobs, who died on Oct 5 after a long battle with pancreatic cancer, had handed over the Apple top post to Tim Cook in August this year.