A new source has provided confirmation that Apple is letting out the iPhone 5S on June 20 and possibly the upcoming smartphone's low-cost edition.

Citing what it called as an unimpeachable source, TechCrunch added its voice to earlier suggestions that the iPhone 5S is coming out on June 20 and its release to follow a few after or by first week of July.

It will be "a firm June 2013 launch," for the much-awaited iPhone refresh, the same report stressed.

TechCrunch declined to divulge the name of its source but the tech site allowed that it is using the information provided by an Apple Certified Manufacturer.

This same company, the tech site said, is part of Apple's supply chain that cranked out the iPhone 5 last year, specifically responsible for manufacturing the gadget's Lightning accessories.

The firm also produced the iPhone 5-compatible wireless charger and for the iPhone 5S release, it was reportedly tapped by Foxconn, Apple's chief manufacturing partner in China, for unspecified component supply duties.

The unnamed iPhone contractor is in close "cooperation with Foxconn for a 'synchronization' with a June iPhone 5S release," TechCrunch said on its report.

Japanese blog site MacOtakara has reported this week that Apple is all prepped to unleash two new iPhones on June 20, headlined, of course, by the iPhone 5S plus the price-sensitive version that earlier reports referred to as the iPhone Mini.

Experts believe that the next-gen iPhone will bring in minor upgrades from its predecessor, chiefly centred on better camera and faster processing chip - probably a quad-core A7 CPU.

The iPhone 5S is also expected to show off the latest iOS 7 prowess, possibly highlighting its new security feature via the fingerprint sensor that Apple will include with the handset's Home button.

But there is a sideshow that will come with the iPhone 5S launch - the simultaneous introduction of the budget iPhone, which analysts said magnify Apple's changing business model.

With a cheaper phone to accompany the high-end iPhone, Apple is starting to train its crosshair to emerging markets, indicating that it is ready for a full-scale war with rivals like Samsung and Nokia, both of which have been generating sizeable revenues from budget-friendly handsets, analysts said.