The pi-top  has a built-in mini OLED monochrome screen. This can be programmed to display information on projects you’re running, such as data and readings from attached sensors to system information like battery life and CPU usage.
See the image below. The four buttons either side are also fully programmable with a wide range of commands.
128 x 64 pixels.
On the OLED screen you can check:
- VNC connection
- Battery Status
- Animation such as 'The First Challenge: The Launch!' found on Further
Either side of the OLED screen are 4 buttons. There are two directional buttons (up and down), a cancel button (X) and a select button (O). The four buttons are also fully programmable with a wide range of commands. Read more about the programmable buttons here