Let's see how the larger of those two, the iPhone 6 Plus, compares to its most obvious rival, the Samsung Galaxy Note 4.
Despite having a smaller screen, the iPhone 6 Plus is 3 percent longer than the Galaxy Note 4.
The iPhone 6 Plus isn't as thin as its little brother, the iPhone 6, but it is still 13 percent thinner than the Note 4.
The iPhone 6 Plus is just 2 percent lighter than the Note 4.
In terms of premium build quality, there's no contest here. The iPhone 6 Plus has a smooth aluminum unibody build, taking some design cues from the latest (two-year-old) iPod touch. The Note 4, though comfortable to hold, is made of a faux leather plastic.
The Note 4 does, however, have a metal band running around its edge. In previous Samsung devices, that band was a metallic-looking plastic.