The design of the iPhone 6 and iPhone 6 Plus are influenced by that of the iPad Air, with a glass front that is curved around the edges of the display, and an aluminum rear that contains two plastic strips for the antenna.Both models come in gold, silver, and "space gray" finishes. The iPhone 6 has a thickness of 6.9 millimetres, while the iPhone 6 Plus is 7.1 mm in thickness; both are thinner than the iPhone 5S and iPhone 5C, with the iPhone 6 being Apple's thinnest phone to date. The most significant changes to the iPhone 6 and iPhone 6 Plus are its displays; both branded as "Retina HD Display" and "ion-strengthened", the iPhone 6 display is 4.7 inches, while the iPhone 6 Plus includes a 5.5-inch.The displays use a multiple-domain LCD panel, dubbed "dual-domain pixels"; the RGB pixels themselves are skewed in pattern, so that every pixel is seen from a different angle. This technique helps improve the viewing angles of the display.