I aslo found this; https://www.crucial.com/support/articles-faq-ssd/ssds-and-smart-data, and this; https://www.crucial.com/support/storage-executive
From what I can understand is that there really is no SMART monitoring for SSDs, and crucial has their own app for their ssds, but it is windows only version, and my external hard drive is a mac formatted drive now. I do have windows virtual machines via Parallels desktop. I tried installing the Crucial drive app on my windows 10 virtual machine, but it did not work, it only saw the virtual machine.
Maybe one day there will be better built in SMART monitoring in apps, for external hard drives, and especially ssd drives.
From what I can understand is that there really is no SMART monitoring for SSDs, and crucial has their own app for their ssds, but it is windows only version, and my external hard drive is a mac formatted drive now. I do have windows virtual machines via Parallels desktop. I tried installing the Crucial drive app on my windows 10 virtual machine, but it did not work, it only saw the virtual machine.
Maybe one day there will be better built in SMART monitoring in apps, for external hard drives, and especially ssd drives.