Smart Display Campaigns - If you want more control over your campaign and its performance settings then this option is not for you, with Smart Display Campaigns many optimization, bidding and targeting options are handled automatically. While this limits your control, it will save you time. If you want to attract new customers beyond your manual efforts, a smart campaign is a good alternative option worth exploring.
https://ppcexpo.com/blog/what-....is-google-display-ne