S.M.A.R.T stand for Self-Monitoring, Analysis and Reporting Technology; is a monitoring system included in computer hard disk drives (HDDs) and solid-state drives (SSDs) that detects and reports on various indicators of drive reliability, with the intent of enabling the anticipation of hardware failures.
Currently Windows and Apple OS X don’t come with any software out of the box that reports to you the S.M.A.R.T status. Below is a list of software programs you can choose from that monitor and report to you the status of hard drive. But you should know that there is no definite set of rules on how to determine if your drive should be replaced based on the indicator that S.M.A.R.T. monitors. I am guessing that there is no definite way of determining which set of indicators should be weighed to determine if the hard drive should be replaced. There are definitely certain indicators that easily outweigh others, like Spin-Up-Time, which indicates that the motor is taking too long for it to spin up to the proper speed. If you notice that your computer is running sluggish, these pieces of software can help you determine if it’s time to replace your hard drive.
Comparison
https://en.wikipedia.org/wiki/Comparison_of_S.M.A.R.T._tools
HD Sentinel
LSoft Active@ Hard Disk Monitor
Crystal Disk Info
https://crystalmark.info/software/CrystalDiskInfo/index-e.html
You can set CrystalDiskInfo to run at startup. It will notify you if the S.M.A.R.T. status of any drive changes. Open the “Function” menu and toggle both the “Resident” and “Startup” options on.
Passmark
https://www.passmark.com/products/diskcheckup.htm
Drive DX for Apple
https://binaryfruit.com/drivedx
SMART SSD
PC Paramedic-Computer Log 