The past few days have revealed more information on the Galaxy S11 phones. Most notable of the lot is the fact that the S11 will see a big upgrade in battery capacity over its predecessor. The phones' launch date appears to have been revealed, too.
https://www.notebookcheck.net/Huge-battery-touted-for-the-Galaxy-S11-as-launch-date-leaks.447063.0.html
Well...since tablets aren't priced higher than smartphones they should know that bumping up screen size doesn't justify higher price.
Galaxy M30s has a 6000 mAh battery for that matter. 5000 mAh is minimum expected for Galaxy S series. Also being a flagship with high-end Snapdragon and 5G, it will drain it much faster.