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The comparative experimental analysis of polarization reversal kinetics in conventional homogeneous triglycine sulfate ((NH 2 CH 2 COOH) 3 ·H 2 SO 4 ; TGS) and relaxor strontium barium niobate (Sr 0.61 Ba 0.39 Nb 2 O 6 ; SBN) crystals have been performed in a broad range of measurement conditions. The experimental data have been collected from microscopic observation of the domain structure, switching current and D −E hysteresis loop registration.The hysteresis loop and dielectric spectra have a strong link to the configuration of ferroelectric microdomains. The domain structure dynamics was examined by the nematic liquid crystal (NLC) method.