All iPhone 6s Plus models have a 5.5" (diagonal) widescreen pressure-sensitive "3D Touch" LED-backlit 1920x1080 native resolution (401 ppi) "Retina HD" display with "IPS technology and a taptic engine," and dual cameras. The rear 12 megapixel, 4K "iSight" camera has 1.22 micron pixels, an f/2.2 aperture, support for simultaneous 4K video and 8 megapixel still photography, and optical image stabilization for both photos and video. The front 5 megapixel, 720p "FaceTime" camera is more modest in capability.