GSmartControl is a graphical user interface for smartctl (from smartmontools package), which is a tool for querying and controlling SMART.
License: Open Source
GSmartControl offers a comprehensive view of drive health with detailed S.M.A.R.T. analysis and real-time monitoring, making it suitable for users who need deep insights into their drives. In contrast, CrystalDiskInfo focuses on user-friendliness and includes benchmarking tools, making it ideal for casual users who want quick health checks and performance metrics.