Under the hood, both the phones boast of a new generation Apple A10 Fusion chip with 64 Bit Quad-Core, 33 billion transmitters. Among the 4 Cores, 2 Cores are High performance and 2 of them are high efficiency which saves up to 1/5th of the power compared to high performance cores. This time the GPU M10 is also upgraded with 6 Cores and is up to 50

Open the Settings app. At the top, you'll see your Apple ID/iCloud profile photo and your name. Tap on it. Scroll down until you see your devices. The first device should be your iPhone; you will see the name of your device. Tap on it.