Apple's recently released devices – the iPhone 6s and iPhone 6s Plus – may be doing good in terms of sales but it has not only failed to impress lots of gadget lovers but also its fans. The disappointment from investors was apparent when the company's stocks fell by a few percent weeks leading up to the release of the current flagship device.

Coming to reality, Apple seems to have forgotten the word "novelty" as it has been pushing out a few devices without major change over the last few years. The iPhone 6, which was released in 2014, also failed to please its fans and its successor too is not much of a difference except the 3D Touch technology. So it's not surprising for gadget lovers to expect big from the upcoming next-generation device dubbed as the iPhone 7.

No much is being known about the iPhone 7, as it is still almost a year away before being released but leaks have claimed that it could have several feature upgrades over its predecessor.

In fact, there are several reasons why the iPhone 7 should be a game-changer for Apple.

There are chances of gadget lovers beginning to ignore Apple devices, presuming that there won't be major changes in its iPhones as proved in the last few years. It is a fact that the company has failed when it comes to innovation – from design to specifications.

Apple's iPhones are not the best devices available in the market if one is to judge by specifications. It may take some time to catch up with its arch rival Samsung and other major smartphone makers in terms of features. So, the upcoming iPhone 7 should be a game-changer for the Cupertino giant.

It appears like the iPhone 7 will be the next big thing for Apple. According to reports, it is expected to be released in September next year and come with features like sapphire screen, wireless charger, water proof and complete metal body.

The device is also expected to measure just between 6.0 and 6.5 mm thick and come without the Home button. Under the hood, it is expected to have an A10 chip processor and a camera with six-element lenses.