The iPhone 6S is the slightly upgraded version of the iPhone 6. It is available in 16 GB, 32 GB, 64 GB and 128 GB storage variants. The successor variants of this phone are iPhone 8 and iPhone 8 Plus. The screen is a 4.7-inch HD (1334×750 pixel) display and is the first panel by Apple that has 3D Touch Display technology. The device is powered by a 1.8 GHz dual-core Apple A9 processor and 2GB of RAM. The next variant of this phone is Apple iPhone 7. The smartphone runs iOS 9 out of the box and has a 1,715 mAh battery. For imaging, the iPhone 6s offers a 12MP rear camera and a 5MP front-facing shooter.