A woman looks at the screen of her mobile phone in front of an Apple logo outside its store in downtown Shanghai September 10, 2013.
A woman looks at the screen of her mobile phone in front of an Apple logo outside its store in downtown Shanghai September 10, 2013. Reuters

Buyers planning to immediately scoop up the iPhone 6 on its September 19 release date need to be informed first of the likely issues or concerns that will come with the device prior to reaching a final decision.

Four of these are provided below:

Powerful battery

Coming from Apple, it is clear that both the iPhone 6 and the iPhone 6 Plus will gain more energy juice compared to the iPhone 5S. But between the two new devices, the bump ups designed for the 5.5-inch model appears more significant - up to six more days of standby time and additional four hours of video playback, according to BGR.

The 4.7-inch build, on the other hand, will only add one hour of almost everything that can be done with the 5S and just about the same amount of standby time seen in the latter.

The better buy then is the iPhone 6 Plus though it is $100 pricier across all configurations. But by paying the extra cash, users will surely enjoy more operating hours in a single charge plus, of course, the larger viewing and navigational front panel.

Camera difference

The two new iPhones are nearly identical except for the screen size. On the camera side, Apple is deploying the device with similar shooting features - hardware- and software-wise. The Plus has the slight edge thanks mostly to its optical image stabilisation (OIS) that promises better quality captures especially for video clips.

Most users, however, will never know the difference, according to Business Insider, so both iPhone 6 models will essentially serve its basic camera purpose. Still, Apple fans planning to use their smartphone as a primary video recorder will more than satisfied with the iPhone 6 Plus, specifically the 128GB variant that will hold more files.

That choice, it should be noted, will translate to cash dame of up to $950 or $1250 for Australian buyers.

Supply shortage?

You think Apple fans queuing up this early on Apple Stores just have too much time on their hands? Think again as they might have the last laugh if a new DigiTimes report prove correct that for September only 10 million units will clear the iPhone 6 production lines in China.

Surely, a mad scramble will ensue with such limited stocks to go around on D-day and the immediate days and weeks ahead and clearly those who already secured spots from where the iPhone will sell have the advantage.

Thankfully, though, for U.S. buyers, Apple has already booked two-week's worth of cargo flights that originate from China, according to PC Magazine. This pretty much ensures that after September 19, Americans will enjoy steady supplies of the next iPhone for at least 14 crucial days.

The cheapest iPhone 6

Friday next week, the cheapest iPhone can be found on Sam's Club, which is owned and operated by giant retailer Walmart. According to CNET, buyers need only to shell out $177 and they get to take home the 16GB iPhone with contract or $277 if they fancy for the 16GB iPhone 6 Plus. Obviously, the offers apply only for U.S.-based consumers.

But fret not Aussies, the iPhone 6 is flying down under at the same time the smartphone will reach North America and other select markets. The device's Australian commercial debut will see the major carriers - Telstra, Optus and Vodafone - immediately offering the handset but according to Lifehacker Australia, pricing and plan packages from these telcos remain unconfirmed as of press time.

The sure thing for now is the iPhone 6 on its September 19 release date will cost a bit higher in Australia - cash setback for the 16GB iPhone 6 is $869 while the 16GB iPhone 6 Plus is $999. Both are SIM-free, Lifehacker Australia said on its report.