Apple iPhone 7 release date revealed; What we know so far on iPhone 6S successor
Apple Special Sept. 7 Event Live Update: iPhone 7, Watch 2 set to be unveiledApple Press Kit

The long rumoured Apple iPhone 7 series is expected to finally break covers next month.

Apple confirmed that it would host a product launch event on Sept. 7 at 10:00 a.m. PDT (10:30 p.m. IST) at the Bill Graham Civic Auditorium, San Francisco. Though there is no mention of the prominence of the programme, its invitation message— "See you on the 7th" -- says it all. Furthermore, Apple, for the past few years, has been unveiling new iPhones in September. So, it's safe to assume that we will witness the launch of the iPhone 7 and possibly a new iPad and Watch 2 series as well. Like last year, the Cupertino-based company also confirmed that it will webcast the event live online.

Press invite hints at key camera feature coming in the new iPhone 7 series:

A close look at the invitation shows numerous coloured-lights in the background that is a tad blurry with a sharp message, bringing out the Bokeh like impression. We believe Apple is sending a subtle message to fans that the new iPhone will come with major upgrade in terms of camera hardware.

Previous rumours too have pointed out that iPhone 7 Plus will be coming with dual-camera. Most of the handsets with two snappers, for instance Redmi Pro, boast this feature.

What is Bokeh effect?

The Bokeh effect is an SLR (Single Lens Reflex) camera feature derived from a Japanese word "boke-aji", which means blur (or haze).

As the name suggests, the camera takes high quality sharp image of the subject and de-focuses the background, to make it look blurry.

Read more: Xiaomi Redmi Pro camera details

Apple iPhone 7: What we know so far

From what we have gathered so far, the new iPhone 7 is expected to come in two models, one a generic iPhone 7 (4.7-inch) and another a high-end model iPhone 7 Plus (5.5-inch).

Both the variants are certain to come in full-metal body.

As far as internal hardware is concerned, the smaller iPhone 7 is said to come with 4.7-inch screen with 750×1334p resolution, 2GB LPDDR4 RAM, Apple A10 CPU, M10 co-processor and 1,960mAh battery, 12MP primary camera with 1/2.6-inch sensor, F/1.9 aperture and 1:3 microns pixels.

On the other hand, the iPhone 7 Plus is expected to sport a 5.5-inch full HD display (1920x1080p), 3GB LPDDR4 RAM, Apple A10 CPU, M10 co-processor, 2,190mAh cell and dual 12MP camera with 1/3-inch sensor and F/1.9 aperture.

It is believed that both the iPhones will be put up for pre-order, two days after the launch on Sept.9 (Friday) and go on sale either on Sept. 16 or Sept. 23.

Watch this space for more updates.