Note 3 smart phone @ Rs49,900 and Galaxy Gear smart watch @ Rs22,900

Tomorrow Apple begins to roll out the new iOS 7 operating system, with free upgrades available to anyone with an iPhone, iPad and iPod touch.

The innovation was unveiled at the company's annual developers' conference back in June and was hailed by chief executive Tim Cook as "the biggest change to iOS since the iPhone".

The system will be pre-loaded on the iPhone 5s and 5c, due to be released two days later on September 20, but people with old Apple devices can also download it.

What can we expect? According to Apple the iOS 7 will feature a "stunning new user interface" and boasts more than 200 new features.

It will be "like getting a brand new device, but one that will still be instantly familiar to our users," said Craig Federighi, Apple's senior vice president of Software Engineering.