Apple iPhone 6 Final Round-up
An iPhone fan waits outside an Apple Store to purchase Apple's new iPhone at Tokyo's Ginza shopping district (Reuters)Reuters

After months of speculations, Apple's much awaited iPhone 6 series smartphones are all set to finally see the light of the day next month.

American technology giant, Apple has begun sending out invites to select media houses for an event on 9 September at Flint Centre for the Performing Arts in Cupertino, reported technology blog BGR.

The invitation just shows the date "9.9.2014" with a message "Wish we could say more." Though there is no hint regarding the significance of the event, anybody can guess that Apple is all prepped up to launch the new big-screen based iPhone 6 series smartphones, fans have been waiting for long. Last year, Apple had unveiled iPhone 5S and 5C in the very same month.

The upcoming iPhone 6 series devices are said to be major upgrade over the previous generation Apple smartphones in terms of screen size and internal hardware. The company is reportedly planning to introduce two iPhones this year.

Both models - iPhone 6 (4.7-inch) and iPhone 6L (5.5-inch) - are expected to flaunt a slim body design (probably inspired from fifth generation iPad Air) and the new-generation 64-bit architecture Apple A8 processor, 1GB RAM, touch ID finger-print sensor, 8.0-megapixel camera with f2.2 aperture (with the possibility of featuring OIS: Optical Image Stabilisations), NFC, and slightly larger battery (50-70-percent more watts power to feed energy sapping iPhone 6L's large screen).

Rumoured Specifications of Apple iPhone 6 and iPhone 6L

Model Apple iPhone 6 Apple iPhone 6L
Display 4.7-inch/4.8-inch screen with full HD (1920x1080p) resolution (with in-cell LCD technology)Pixel density: 440 ppi (pixels per inch) 5.5-inch retina IGZO display with 2272x1280p resolutionPixel density: 510 ppi
OS Apple iOS v8.0 Apple iOS v8.0
Processor 64-bit A8 chipset 64-bit A8 chipset
Storage 16GB/32GB/64GB/128GB 16GB/32GB/64GB/128GB
Camera Main: 8.0-megapixel camera with true tone flashFront: 3.2-megapixel Main: 8.0-megapixel camera with true-tone flashFront: 3.2-megapixel
Battery 1800 mAh 1800 mAh
Network 4G-LTE 4G-LTE
Add-ons Finger-print sensor, Wi-Fi, Bluetooth, NFC Finger-print sensor, Wi-Fi, Bluetooth, NFC