What We Know About the iPhone 5 (Update 1)
Apple has kept the iPhone's design fairly stable, with a 3.5-inch screen size, tweaking it slightly, as it refines the five-year old product. Many now believe the next iPhone will have a 4-inch screen, as it competes with offerings like the Samsung S III Galaxy and other 4-inch phones.
The iPhone's screen size has not changed since inception, so this is a slight strategy change for Apple, perhaps a direct result of Tim Cook running the company now.
The next iPhone may also be slightly thinner than its predecessors, as Apple utilizes in-cell technology. This technology will allow Apple to integrate touch sensors into the LCD, eliminating one layer of the phone. It could also help cut costs and simplify Apple's supply chain even further, according to The Wall Street Journal.
The casing of Apple's next smartphone could be aluminum, as Apple looks to abandon the glass backing of the current form-factor. There have been problems with the glass backing scratching, so Apple may look to alleviate that. AAPL data by YCharts
It's almost a certainty at this point that the next iPhone will run on Long Term Evolution (LTE), or 4G high-speed networks from AT&T(T) and Verizon(VZ) . This will allow the next-gen phone to consume data at a faster speed and make the browsing and data consumption experience all that more enjoyable.
Usage of LTE has shown battery life to decrease. Apple acknowledged that in its new iPad, when it said the battery would last nine hours on LTE, as opposed to 10 otherwise. Apple could improve the battery life in the new iPhone, as Capital Advisors' Smith suggested.