As soon as you put a Google Pixel phone inside, it automatically switches to VR mode and calibrates nearly everything. No ports or cables to plug in. It's thanks to an NFC chip hidden inside the door of the headset.
When the two black rubber nubs inside the headset door touch the screen, they tell the phone exactly where to place the images for each of your eyes, so that they line up with the headset's magnifying lenses.
The remote control bundled with the Daydream View makes a big difference, acting like a magic wand (or air mouse, if you prefer) to point the direction you want to go or swing objects in VR. You can't reach out and grab things, though.