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Microlife WatchBP O3 (BP 3MZ1-1)
Device Name:
WatchBP O3
Device Model:
BP 3MZ1-1
Manufacturer:
Microlife Corporation, 9F - 431 RuiGuang Road, NeiHu, Taipei 11492, TAIWAN ROC.
Measuring functions:
Blood pressure
Primary Client Use:
Intended for both ABPM and professional use
Measurement Site:
Upper Arm
Measurement Occurrence:
Single, repeated and intermittent measurements
Availability:
Discontinued but still available
Availability according to Countries or Regions:
Ireland
Device Manual:
Click here to download the Device Manual
Description:
The Microlife WatchBP O3 (BP 3MZ1-1) is an ambulatory blood pressure monitor. Its blood pressure measurement technology has been proven to be accurate, with a 1-star Medaval rating. Blood pressure measurements are taken from the upper arm. It is intended for both ABPM and single measurements for professional use. This device has been discontinued by the manufacturer but may be available through certain outlets.
Assessment:
The technology used in the Microlife WatchBP O3 (BP 3MZ1-1), to measure blood pressure, has passed in two clinical validation studies, in general populations, according to recognised standard protocols, as published in peer-reviewed publications.
Recommendations:
Accuracy AssessmentRecommendationBasis
BP Medaval ★ Recommendation Older clinical validation; older protocol; multiple clinical validations
BP BIHS (UK and IRL) ABPM Published evidence
BP ESH (Europe) ABPM Published evidence
BP Stride BP ABPM for adults (Preferred) Published evidence
Device Family:
Microlife WatchBP O3 Ambulatory (2G) (BP 3SZ1-1)P, Microlife WatchBP O3 (BP 3MZ1-1)P, Microlife WatchBP O3 AFib Ambulatory (BP 3MZ1-1A)P
Legend: P Stride Equivalence
Validation Publications:

Ragazzo F, Saladini F, Palatini P. Validation of the Microlife WatchBP O3 device for clinic, home, and ambulatory blood pressure measurement, according to the International Protocol. Blood Press Monit. 2010 Feb;15(1):59-62. doi: 10.1097/MBP.0b013e32833531ca. PMID: 20075717.

ESH-IP:2002 - Pass General population

Stergiou GS, Tzamouranis D, Nasothimiou EG, Karpettas N, Protogerou A. Are there really differences between home and daytime ambulatory blood pressure? Comparison using a novel dual-mode ambulatory and home monitor. J Hum Hypertens. 2010 Mar;24(3):207-12. Epub: 2009 Jul 16. doi: 10.1038/jhh.2009.60. PMID: 19609285.

ESH-IP:2002 - Pass General population

Azaki A, Diab R, Harb A, Asmar R, Chahine MN. Questionable accuracy of home blood pressure measurements in the obese population - Validation of the Microlife WatchBP O3® and Omron RS6® devices according to the European Society of Hypertension-International Protocol. Vasc Health Risk Manag. 2017;13:61-9. Epub: 2017 Feb 27. doi: 10.2147/VHRM.S126285. PMID: 28280348. Available from: PMC5338962. eCollection 2017.

ESH-IP:2010 - Fail Obese subjects, BMI ≥30 kg/m²

Validation Publications for Equivalent Devices:

Note: This is a provisional list, as equivalence according to EU Regulation 2017/745 (e.g. MEDDEV 2.7/1 rev 4) is not proven. Accordingly, these publications are not used in the assessment of star-ratings.

Microlife WatchBP O3 Ambulatory (2G) (BP 3SZ1-1)

Fania C, Lazzaretto I, Fontana U, Palatini P. Accuracy of the WatchBP O3 device for ambulatory blood pressure monitoring according to the new criteria of the ISO81060-2 2018 protocol. Blood Press Monit. 2020 Oct;25(5):285-290. Epub: 2020 Jun 23. doi: 10.1097/MBP.0000000000000459. PMID: 32898350.

81060-2:2019 - Pass General population

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