Apple Inc. (NASDAQ: AAPL) is expected to release the fifth generation iPhone 5 sometime in June or October. Apple's nemesis in the patent wars and in the smartphone market, and supplier to key parts for Apple mobile devices, Samsung Electronics is due to release in weeks -- or months -- a follow-up to highly praised Samsung Galaxy S 2.

Here are the top reasons why the Samsung Galaxy S 3 won't outsell the iPhone 5.

The Apple Brand

The overwhelming success of the iPhone 4S and the new iPad prove that Apple need not put heavyweight improvements to prior models in order to maintain its dominance in the market.

Mercury News' Jeremy Owens points out, contained just serious upgrades to components rather as opposed to "gigantic leaps into new territory."

The new iPad sports a "retina display" that has four times as many pixels as the iPad 2, a dual-core CPU and a quad-core graphics processor, and has 4G-LTE capability. But critics have pointed out that the third generation iPad doesn't have the Siri virtual assistant, and doesn't have a quad-core CPU at a time when Android device makers are readying tablets with quad-core chips.

Nonetheless, the new iPad found commercial success. Apple acknowledged that that "customer response to the new iPad has been off the charts and the quantity available for pre-order has been purchased".

The iPhone 4S has been maligned for its recycled design, lack of 4G LTE support and it's "small" 3.5-inch display. Nonetheless, Apple sold 4 million units of the iPhone 4S within three days of release.

4-inch Plus Screen for iPhone 5

The Galaxy S 2, with its dual-core processor, 4.27-inch screen, and 4G LTE support, has been tagged among the best smartphones in the market. Many smartphone users have opted for the Galaxy S2 or the other 4-inch-plus phones from HTC and Motorola as their bigger screens allow them to navigate pages or watch movies more comfortably.

But Android devices' edge in terms of screen real estate appears to be ending.

South Korea's Maeil Business Newspaper reported that an iPhone 5 with a high-definition 4.6-inch Retina display is on the way. Maeil, without disclosing its source, said Apple has already started placing orders for the bigger screens.

The late Apple founder Steve Jobs reportedly opposed an iPhone with a bigger screen because it "fragmented iPhones."

But Apple may be forced to join the bandwagon as phones with bigger screens continue to gain following. And reports late last year confirmed that Jobs was working on a prototype for a 4-inch-plus iPhone last year.

Refreshed Design

The iPhone 4S literally recycled the design of the iPhone 4, a model unveiled two years ago. The iPhone 5 should have have the external design changes fans have been looking for in year's new iPhone. Samsung's Galaxy Nexus has 4.65-inch of screen with curved glass. An iPhone with a curved glass design makes sense for ergonomics purposes. And the iPhone 4 and 4S's design is far from flawless -- they are not as ergonomic as the prior models because of their lack of curved edges.

The iPhone 4S has been an overwhelming commercial success but nonetheless, many users have not paid up $200 (on a two-year contract) to upgrade to the iPhone 4S because of its lack of new design. A newly designed iPhone should entice owners of older iPhone models to upgrade to the iPhone 5 and for Android and BlackBerry users to switch.

The Specs

The Galaxy S3 is rumored to have a 1.5 or 1.8 GHz quad-core Exynos CPU, 1 or 2 GB RAM, a 12-megapixel camera and 4.7 or 4.8-inch Super AMOLED HD screen. It has also been rumored -- although unlikely -- that the Galaxy S3 will have 3D support. The phone will arrive with the Android 4.0 Ice Cream Sandwich operating system. The high-profile camera of Galaxy S2 may also get updated to 12-megapixel shooter. The device will also have 4G LTE network support, optional Near Field Communication (NFC), microUSB version 3.0, assisted GPS with GLONASS, Bluetooth version 4.0, Wi-Fi with Wi-Fi Direct plus hotspot functionality and dedicated microHDMI port.

The iPhone 5 will have major updates from the previous model. The fifth generation iPhone is expected to have a 4.6-inch display, which is a first for an iPhone (previous models had a 3.5-inch screen real estate). The iPhone 5 is also expected to have a higher resolution "retina display", a bigger battery, a quad-core processor, and a new design.

* Quad-Core Graphics Processor

The iPhone 4 has a single core A4 processor, while the iPhone 4S has a dual core A5 processor. The new iPad released early this month doesn't have a quad-core processor -- it just has a dual-core CPU and quad-core GRAPHICS processor. It is not years or decades too early for a quad-core CPU in a mobile device. Asustek has released a tablet computer with a quad-core processor -- the Asus Eee Pad Transformer Prime, which has a 1.3 GHz Quad-Core Nvidia Tegra 3 processor. Samsung, according to reports, is set to release a Galaxy S 3 powered by an Exynos 4412 chipset with a quad-core unit, which will apparently be clocked at 1.5GHz. The phone is guaranteed to arrive with the Android 4.0 Ice Cream Sandwich operating system.

Notwithstanding that the 11-inch iPad doesn't have a quad-core CPU, the dual-core A5X chip is enough to preserve performance of an iPad with a new Retina Display. Apple has claimed that the new iPad's A5X chip had 4x the graphics performance as the Tegra 3. Even if Apple doesn't put an A6 quad-core chip to the iPhone 5, the A5X chip should be enough to fend off rivals.

* 4G LTE Capability

Remember that ad by Samsung that pokes fun at Apple fans who wait in lines for a magical iPhone, which does not have 4G?

Retrevo, in its survey of 1,300 U.S. consumers, reported that that 47 percent or almost a half of current iPhone 4 owners were disappointed with the iPhone 4S; 12 percent were hoping for a bigger display, 21 percent wanted a refreshed design, and 29 percent desired 4G.

The iPhone 5 appears to be addressing concerns of owners. The presence of 4G-LTE support in the new iPad indicates that an iPhone with 4G is in the works.

iOS

iOS has been criticized for being a closed system. Android, including the latest, Android 4.0 Ice Cream Sandwich, has improved by leaps and bounds. But iOS is more stable, smooth and mal-ware free than Android. There's also this fragmentation issue in which mobile device manufacturers and app developers are dealing with different versions of the Android OS. There's these inconsistencies in the interface between apps and the lag when doing certain simple tasks.

When Apple releases an update to iOS, the new software is available to all customers the same day. But updating your smartphone's Android 2.3 Gingerbread to Ice Cream Sandwich appears to be a complicated process.