The iPhone 6 Plus models (which users sometimes refer to as iPhone 6+), regardless of network compatibility, have a 5.5 (diagonal) widescreen multi-touch IPS LED-backlit 1920×1080 native resolution (401 ppi) Retina HD display, dual cameras — a rear 8 megapixel, 1080p iSight camera with 1.5 micron pixels, an f/2.2 aperture, and both Optical image stabilization and autofocus with Focus Pixels (phase detection autofocus capability) as well as a front 1.2 megapixel, 720p FaceTime camera.

The iPhone 6 Plus was offered in three metallic color options — silver, which has a white glass front and a silver colored aluminum back (pictured); gold, which has a white glass front and a gold colored aluminum back; and space gray, which has a black glass front and a medium toned gray aluminum back. Regardless of color, each uses a unibody design with gently rounded sides reminiscent of the earlier iPod touch 5th Gen, but with glass that beautifully curves toward the edges for a completely smooth and continuous surface. It also includes the Touch ID fingerprint sensor embedded in the home button.

This iPhone 6 Plus model is powered by a 1.4 GHz 64-bit Apple A8 processor and has 1 GB of LPDDR3 RAM and 16 GB, 64 GB, or 128 GB of flash storage. It also supports 802.11a/b/g/n/ac Wi-Fi, Bluetooth 4.0/4.2, LTE (4G), and NFC for Apple Pay financial transactions. It has a bottom-mounted headphone jack and uses a Lightning port to connect to a Mac, PC, dock, or power adapter.

Apple estimates that the iPhone 6 Plus provides up to 80 hours of audio playback, 24 hours of talk time on 3G, 12 hours of Internet use on 3G, 12 hours of Internet use on LTE, 12 hours of Internet use on Wi-Fi, 14 hours of video playback and 384 hours of standby time.