The technology used in the Grandway MD2301, to measure blood pressure, is among the best rated for accuracy by Medaval Ltd. It has passed in two validation studies, between general and specific populations, according to recognised standard protocols, as published in peer-reviewed publications.
Chen W, Zeng ZL, Bing S, Li LY, Wang R, Wan Y Validation of the Grandway MD2301 digital automatic blood pressure monitor according to the European Society of Hypertension International Protocol Blood Press Monit. 2016 Aug;21(4):259-261. doi: 10.1097/MBP.0000000000000191. PMID: 27093703.
ESH-IP:2010 - Pass General population
Huang J, Wang Y, Liu Z, Wang Y. Simultaneous validation of the Grandway MD2301 digital automatic blood pressure monitor by the British Hypertension Society and the Association for the Advancement of Medical Instrumentation/the International Organization for Standardization protocols. Blood Press Monit. 2017 Feb;21(1):44-47. doi: 10.1097/MBP.0000000000000218. PMID: 27749334.
81060-2:2013 - Pass General population
BHS:1993 - Pass (A/A) General population