Smart banners are enabled by default in Appodeal SDK.
Smart banners can render screen-width banner ads adapting to different screens.
The sizes for Smart banners vary depending on device resolution:
Ad Height: 32 dp
Device screen height: ≤ 400 dp
Ad Height: 50 dp
Device screen height: 400 dp and ≤ 720 dp
Ad Height: 90 dp
Device screen height: > 720 dp
To disable Smart Banners you can invoke this method (Native Android example):
Appodeal.setSmartBanners(false);
In this case, banner size for both phones and tablets is 320x50. To enable 728x90 banners for tablets you can invoke this method (Native Android example):
Appodeal.set728x90Banners(true);