The upcoming release of Apple smartphones, dubbed as iPhone 6 and iPhone 5S, suggests the launch of other Apple products - iPod Touch 6 and iWatch.

iPhones are usually released in a keynote event. But Apple keynotes tend to involve far more than just one new product update, pointing to sidenote products such as the iPod touch 6 or "One More Thing" products such as the iWatch.

There is a high possibility that Apple will release the 6th generation of iPod Touch if rumours proved to be true about iPhone 6. When the iPhone changes to a new hardware design, the iPod Touch also changes. So an iPhone 6 will mean an iPod touch 6, while an iPhone 5S will mean that the iPod touch will remain in its current incarnation, possibly with internal spec upgrades to match that of the 5S.

The iWatch, on the other hand, is a device that communicates wirelessly with your iPhone, acting as a notification system and minor-functionality surrogate allowing you to send texts or check Facebook from your wrist without having to fish your phone out of your pocket. It has long been expected to debut alongside the iPhone 6. But if it's ready and the iPhone 5S is the one seeing its release date in June, the iWatch could debut alongside it.

According to Japanese magazine Mac Fan, the new iPhone 5S will be unveiled on June 20 and go on sale by July. It also said the rumoured low-cost version, targeted at India and China, would be launched in August. Mac Fan did not share where it got its news from. However, the new iPhone 5S will not be imbued with Apple's new mobile operating system, iOS7, it would seem.

Apple is expected to include an improved camera in the iPhone 6 and/or iPhone 5S which is rumoured to be capable of taking "Super HD" pictures. In order to take snaps at that resolution it'll need to have at least a 13 mega-pixel camera.

The lack of NFC support on the iPhone 5 was one of the biggest criticisms aimed at Apple's smartphone. Rumours suggest that the iPhone 5S could include support for the contact-less technology which can be used to pay for items in retail stores. Other features rumoured to be included in the handset is the A7 quad core chip processor, Retina or IGZO screen display among others.