But Samsung is also marketing-aware and has invested heavily in advertising its products based on market research, analysts said. "If there wasn't a market for bigger screens, the phones wouldn't sell," said Jack Gold, an analyst at J. Gold Associates. "If you look around, you can find an Android device with a smaller form factor -- just perhaps not with the latest Snapdragon or Tegra processor."
Bigger phones tend to use the newest and most expensive chips, Gold said, partly because the overall higher price paid by consumers allows it. While bigger screens make it hard for a one-handed user, they also are easier on the eyes of older users when watching video and surfing, he added. "The market is driving the device selection," he said.
Samsung didn't say which brand of processor it is using in the Mega devices, although the Mega 6.3 will have a 1.7 GHz dual-core processor while the Mega 5.8 will have a 1.4 GHz dual-core processor. The Mega 6.3 will support LTE and HSPA+ networks, but the smaller Mega 5.3 will support only HSPA+. Both will have two cameras with 8 megapixels in the rear and 1.9 megapixels in the front.
The batteries are also different, with the larger device running a 3,200 mAh battery and the smaller a 2,600 mAh. The Mega 6.3 can come with either 8 GB or 16 GB of internal storage, but the 5.8 comes only with 8 GB of internal storage. Both can accommodate an added microSD up to 64 GB.
While the Galaxy Note II includes a stylus, neither of the Megas has one. Even so, Samsung claimed the Mega devices are a mix of a smartphone and tablet that can support multitasking while being held in one hand.
Screen size is not the only difference between the Mega and other Samsung devices. With LCD screens in the Mega devices and their less expensive dual-core processors, their prices will likely come in below the Galaxy S4 with its Super AMOLED-ready display, analysts said.
The GS4 will also have either the 1.6 GHz Exynos 5 Octa quad-core chip inside (with eight cores, but only four working at any time) or the U.S version of GS4 with the Qualcomm Snapdragon 600 quad-core processor.
The GS4 is expected to go on sale in the U.S. for $200 plus a two-year contract sometime in the second quarter, but possibly by the end of April, according to some reports.