More From construction smartphones

No. 1: Apple iPhone 5S

No. 1: Apple iPhone 5S

Posted by Wayne Grayson on Nov 06, 2013

Some of you might be wondering what the iPhone is doing at the top of our list. It's not the ...

No. 2: Caterpillar B15

No. 2: Caterpillar B15

Posted by Wayne Grayson on Nov 06, 2013

While the Galaxy S4 Active went for rugged and sleek, the Caterpillar B15—the company's first smartphone— goes for rugged with ...

No. 4: Samsung Galaxy Note 3

No. 4: Samsung Galaxy Note 3

Posted by Wayne Grayson on Nov 06, 2013

Make no bones about it: the Samsung Galaxy Note 3 is a giant phone. With a 5.7-inch display, it makes ...

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