While rumor mills continue to churn speculations around the upcoming iPhone lineup, a slew of leaks for the highly-anticipated smartphones have been surfacing online as well. One such recently surfaced mockup of the iPhone 7 Plus hints the purported smartphone might sport a shade of blue.

The mockup is not an actual iPhone but just a body - fabricated by a developer of wireless headphones dubbed, Besound - that's allegedly based on the specs of the actual device. The mockup was unveiled by YouTube account Unbox Therapy, that takes us on a video tour to highlight what are expected to be primary changes from last year's iPhone 6S.

If rumors doing rounds are anything to go by, the impending iPhone line would sport only basic enhancements.

That being said, rumors hint that 2017's model would come with an array of awe-inspiring features. But in the wake of declining iPhone sales the past two quarters, the Cupertino-based tech firm still needs to emblazon the iPhone 7 with enough features to convince avid smartphone users to give the new device a shot, CNet reported.

The most noteworthy feature is the blue tone for the iPhone 7 Plus mockup, a color option that would be a first for popular tech firm. The video clip then gives a peek at other rumored changes that earlier reports have indicated.

The video clip shows dual-camera lenses, which would probably show up in the iPhone 7 Plus, but not the iPhone 7.

The antenna lines have been shifted from the back of the body to the sides where they would be less noticeable. The next highlight is the three dots on the back that form the Smart Connector, which has the ability to transfer data and power between the phone and accessories such as a Smart Keyboard.

Although the iPhone 7 prototype displayed in the clip does not seem to work in the typical iOS sense, it looks like the mockup is loaded with a hardware testing suite, GSM Arena reported.

Furthermore, the mockup displays a dual speaker, which, like the aforementioned color choice, would be a first for the iPhone.

However, the introduction of the extra speaker could result in the elimination of the standard 3.5mm audio port. If this proved to be true, Apple would push sound through the Lightning jack, requiring adapters for all audio accessories including earphones and external speakers.

However, Bluetooth speakers and earphones would still work.

Although the iPhone 7 prototype appear believable enough, but avid fans waiting with bated breath for the next iPhone lineup should still take it with a grain of salt citing the amount of leaks and renders of the purported new design of the iPhone 7 that have already surfaced online.

Apple is expected take the wraps off the real thing next month during its annual iPhone launch event.