How can I use my PS4 without a controller?

Here is what you have to do:

1. From the PS4’s Home Screen, press up on the D-pad to select the navigation menu.
2. Go to Settings.
3. Find Devices.
4. Enter Bluetooth Devices.
5. Wait for the system to scan for nearby Bluetooth devices.
6. Pair the devices normally by following the default pairing process of your Bluetooth device.