The closest thing Linux users have to CrystalDiskInfo is an app call GSmartControl. Check it out!
On the Debian or Ubuntu, install via:
sudo apt-get install gsmartcontrol
GSmartControl gives the ability to review drive health including SSD lifetime left, as well as the ability to run smart tests.
Here is a boot disk I have which is almost four years old. GSmartControl is warning me that its days are numbered! 🙂 Maybe this will convince my spouse to let me get that fancy Intel SSD.