In this study, the usability of the Robotic Total Station (RTS) and Global Navigation Satellite System (GNSS) measurements in the determination of the relative displacements of the structures were investigated and analyzed with experimental data. For this purpose, two GNSS receiver antennas and Total Station prisma reflectors were installed at the observable height of a high structure in Istanbul. At these two observation points, Real Time GNSS measurements and angle-distance-zenite measurements were performed simultaneously using two RTSs from the monitoring points located at a distance of approximately 580 m. Thus, the time series of these observations were analyzed to determine and compare the amplitude of oscillation of the structure. As a result of the analysis, the following results were obtained; While it was possible to determine the oscillations of 0.5-1 cm amplitude with the centimeter accuracy with GNSS measurements, the oscillations with amplitude with a few mm accuracy (2 mm) with RTS measurements could be recorded but high frequency displacements values could not be determined. These results demonstrated the availability of automated Totalstation systems for the determination of structural displacements as an alternative to GNSS .