Currently, Apple is working on its greatest and latest iPhone version. It is quite difficult to predict what will be its features and when it's finally coming out. The anticipated release dates are confusing and most iPhone fans are now excited: March and September 2014.

The reported March release of the iPhone 5S successor would help Apple win the market share in the phablet category. But the Cupertino-based company is set to release the iPhone 6 with a relatively small 4.8-inch panel and wider and taller than the iPhone 5S. This will be 0.2-inch smaller that its rival, Samsung Galaxy S4 and it is pretty negligible.

The iPhone 6 will have sensational features. It will sport a screen that's very powerful, capable of chipping concrete without even getting a single scratch on. This is the sapphire glass, a strong material that easily outpaces the durable Gorilla Glass material. Other new features are the NFC allowing the user to checkout at a register and the eye scanning technology.

The iPhone 6 processor is an improved A7 chip found in the iPhone 5S and iPad Air. The A7x chip features a quad core processor along with enhanced quad core graphics. The latest patent filed by Apple is the "voice-based image tagging and searching" that allows users to tag pictures and sort using a voice command.

The user can just tell the iPhone 6, "This is me at the beach" and the device can tag the photo accordingly. It can also tag photos based on time and location where taken. The technology can also recognize buildings, faces and locations. The iPhone 6 is also expected to feature an improved Siri that can provide more accurate responses to queries.

Another patent is the installation of a heart rate monitor in the bezel or frame of Apple's devices. Apple shows inclination to biometric health and security with its M7 co-processor. After several years, Apple was also awarded the hover gesture patent, which could help the iPhone 6 stand up against the rumored Samsung S5 and the Galaxy S4. Hovering shows a preview or additional info to a link or photo online, similar to hovering a mouse cursor on a PC.