According to the chart, Samsung's 4.5-in. Galaxy S II screen covers 58% more screen area than the iPhone 4S screen, while the AT&T version of the Galaxy S II with its 4.3-in. touchscreen is 42% larger than the iPhone 4S model's 3.5-in. diagonal touchscreen.
Samsung also noted to reporters that its device also sports a dual-core processor -- up to 1.5 GHz. Samsung said the Galaxy S II also matches the rear camera at 8 megapixels.
The S. Korean company also noted that its Galaxy S II is still the thinnest smartphone at 0.35-in., compared to iPhone 4S's 0.37-in. thickness.
Samsung said its networks offer faster speeds than Apple -- 21 Mbps on AT&T's HSPA+ networks speed and 42 Mbps on T-Mobile's HSPA+42. Those compare to iPhone 4S's 14.4 Mbps speeds on AT&T's HSPA network.
Also, Samsung said, video chat clients on Galaxy S II include Google Chat and Skype, not just Apple FaceTime.
On ther other hand, the iPhone 4S is available from Verizon Wireless, which doesn't sell the Galaxy S II. The iPhone 4S also offers a better screen resolution at 960 x 640, versus the Galaxy S II's 800 x 480.
Samsung also noted the $199 starting price for the Galaxy S II includes 16GB internal storage and up to 32 GB external storage. The $199 iPhone 4S is a 16GB model with no external storage.