The audience is in the camera, you are talking directly to potential customers. So keep that eye contact towards the camera.
If necessary, use notes. I’d personally rather see a person making short pauses, looking at his notes and looking back to me as somebody only reading a text.
By this I mean, even if you place your phone right next to the camera, we can see that you’re reading.
If needed, the solution is then a teleprompter. With the help of a reflection process, it enables you to look directly INTO the lens. It can make sense if you’re taking the video creation very seriously and already have some equipment.