This article describes how to check the available storage.
INSTRUCTIONS & INFO
From the home screen, swipe down from the Notifications bar.
Tap the Settings icon.
Under the General tab, scroll to, then tap Storage.
Available internal memory is displayed under INTERNAL STORAGE.
Available external memory is displayed under SD CARD.
LG Smart Cleaning provides helpful notifications of infrequently used apps to maintain smooth device performance. Note: Settings > General > Smart Cleaning
The LG G Flex2, is available with 32GB internal memory with approximately 21GB of usable memory and the option to add a MicroSD card up to 2TB.