Task manager(to kill applications and regain memory)
RAM Usage monitor(by default, Nexus 5 has 2GB RAM)
Disk space left on internal 32GB storage.
1) Clean Master
2) Greenify would hibernate apps so that they are not running in the background
3) If you rooted I suggest gravity box. It has the RAM monitoring deal where you hit the "recents" key and depending on where you put it it will show used RAM vs unused. Since this device has 2GB of RAM it is not recommended to constantly be killing the apps in the background.
4) you could download minimalistic text there are all kinds of things that it could tell you and as the title says it's minimal. or just look in storage. Also look into zooper, it has a predefined layout for sys information.
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16 Sep 2014
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