Rumored concept picture of iPhone 6 released by iPhoneSoft, Jan 3, 2014.

With Apple Inc's yearly launch event just days away; there have been various rumors, leaked photos and reported specifications all over the Internet.

Compared with the current iPhone 5s, it is rumored that the planned launch of a new phone by the tech giant will be a big improvement on the present version. However, nothing can be confirmed until the launch on Sep 9.

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Larger display

It is claimed that the new phone, which will be called iPhone 6, will come in two models - one with a 4.7-inch screen, and another with a 5.5-inch display. This will be larger than the current iPhone 5s, which has a 4-inch screen.

iOS 8 operation system

The iPhone 6 will very likely come with the latest iOS 8 mobile operating system, the current phone still uses the iOS 7.1.2 version.

Better hardware

The iPhone 6 will probably come with A8 processor, 2GB RAM, 1810 and 2915mAh battery capacities respectively for the 4.7-inch and 5.5-inch display.

Sapphire crystal display

Besides the retina screen, it is also rumored to feature a sapphire crystal display, but whether the costly material display will be launched on Sep 9 we will just have to wait and watch.

Following Apple's style of metal frame, mobile-phone maker Xiaomi released its 5-inch display with metal frame in July and Samsung debuted is Note 4 with 5.7-inch display in a metal frame on Wednesday.