Electronics giant Apple sent out invites for a special event, scheduled to be held in its hometown of Cupertino, California, on September 9, where the iPhone manufacturer will unveil the latest versions of its best-selling smartphones - iPhone 6.

The company is expected to launch its newest iPhone, the iPhone 6. Apple can also unveil a wearable at the event.

Apple is expected to launch larger 5.5-inch and 4.7-inch screens for iPhones, and might introduce its long-awaited smartwatch.

The company will use the September events to show its important products. It must be noted that the iPhone actually accounts for half its business, and it is gaining prominence as tablet sales reduce.

Apple has not launched a new product since the introduction of iPad in 2010. However, CEO Tim Cook has promised to introduce new products in 2014.

The next generation of smartphones will integrate new software features such as HealthKit, which is a central repository of health data and services, and HomeKit, which will assist in managing connected devices within the home.

The company has been discussing the HealthKit data service with apps developers and healthcare providers. According to industry experts, though HealthKit is in its preliminary stage, it will become a major force in mobile and digital healthcare in the future.