The objective of this study was to determine the accuracy of the UEBE visomat comfort eco blood pressure measuring device tested according to the requirements of the International Protocol of the European Society of Hypertension. The device evaluation was performed in 33 participants with a mean±SD age of 54.3±18.7 years (range 30–91 years). Their systolic blood pressure (SBP) was 144.0±23.7 mmHg (range 100–180 mmHg), diastolic blood pressure (DBP) was 86.2±14.4 mmHg (range 60–110 mmHg), and upper arm circumference was 29.4±2.8 cm (range 24.0–34.0 cm). Blood pressure measurements were performed in the sitting position. The visomat comfort eco passed all three phases of the European Society of Hypertension protocol for SBP and DBP. Mean blood pressure differences for the visomat comfort eco (device–observer) were −0.5±5.7 mmHg for SBP and −1.4±5.3 mmHg for DBP. In conclusion, the present results show that the UEBE visomat comfort eco monitor can be recommended for clinical use in the adult population.