Note: Smart campaigns can only be created in Smart mode. New and existing advertisers not in Smart mode are eligible for a variety of other campaigns.
Smart campaigns are the default campaign type for new Google Ads users in every country where Google Ads is available. Learn more about country restrictions for Google Ads
The Smart campaign interface is available in 44 languages, which can be found here.
Note: These languages are different from the ones you can write your ads in. See the full list of languages for writing ads by clicking Edit in the 'Keyword themes' card. Here you will find a drop-down menu with the available ad languages.