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A&D Medical UA-611 vs Microlife BP B1 Smart

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

A&D MedicalUA-611MicrolifeBP B1 Smart
Overview
Released––
Measuring
TypeUpper armUpper arm
Irregular heartbeat detectionYesYes
AFib detection or ECG–No
MethodAutomatic oscillometric measurement with fuzzy-logic-controlled inflation; designed for adult home use; first on-sale date not establishedAutomatic oscillometric upper-arm measurement during deflation; exact European technical model BP3KQ1-1E, reference BP B1 Smart. First on-sale date not established
AccuracyMaker specification ±3 mmHg pressure and ±5% pulse; pressure range 0–299 mmHg, systolic 60–279 mmHg, diastolic 40–200 mmHg and pulse 40–180 beats/minStatic pressure accuracy ±3 mmHg, pulse ±5% of the readout; systolic range 60–255 mmHg, diastolic 40–200 mmHg and pulse 40–199 beats/minute. Cuff-pressure display 0–299 mmHg is separate
Clinical validationA&D UK claims ESH 2010 validation; Medaval identifies the UK BIHS recommendation as manufacturer-declared equivalence to the UA-651 and says the equivalence study is unpublished. The US Validate BP listing covers UA-611 under ANSI/AAMI/ISO 81060-2:2018 with different cuff options; this does not establish direct validation of the supplied UK cuff configurationEuropean page displays an ESH badge and BIHS A/A wording; exact manual footnote refers to measuring technology used by BP 3BTO-A. Independent validation of exact BP3KQ1-1E not established; headline omitted
FeaturesIrregular heartbeat indicator, pressure progress bar, WHO classification indicator, stored-reading average and automatic power-off; irregular heartbeat indication is not a specific AFib diagnosisGentle+ pressure/speed control, irregular-heartbeat symbol, low-battery indicator and automatic switch-off. No dedicated AFib algorithm, ECG recording or Bluetooth in this exact European one-button model; Italian Bluetooth hardware sharing the B1 Smart name is a different regional identity
Cuff
Cuff fits22–32 cm22–42 cm
CuffSupplied latex-free and metal-free SlimFit cuff fits 22–32 cm; optional large cuff fits 31–45 cm, sold separately; UK manual says this model is not designed for a small cuffSupplied soft M–L cuff fits 22–42 cm arms; compatible cuff connector required. Website calls the cover washable in one feature paragraph but the supplied cuff non-washable in specifications; manual forbids machine/dishwasher washing
Connections and memory
Readings stored301
Bluetooth and appNoNo
MemoryLast 30 blood pressure and pulse measurements, with stored-reading average; no separate user memories listedStores only the last result, recalled by holding ON/OFF while the device is off; stored reading deleted when batteries are removed. No multi-reading history, averages, clock setting or separate user selection established
AppNo Bluetooth; readings can be recorded manually–
PowerFour AA 1.5 V batteries; maker claims approximately 700 measurements with LR6 alkaline batteries or 200 with R6P manganese batteries at 180 mmHg and 23°C. UA-611 has no DC socket; the optional adapter in the shared manual applies only to UA-651Four 1.5 V LR3 AAA alkaline batteries; approximately 400 measurements with alkaline cells. Rechargeable NiMH cells supported but charged externally; no mains-input socket established in exact controls or technical table
Design
Display detailsSystolic pressure, diastolic pressure and pulse shown with battery, irregular heartbeat and pressure/classification indicatorsMonochrome LCD and a single ON/OFF control. Exact April 2026 English manual rates the device IP21
SizeApproximately 96 × 68 × 130 mm (width × height × depth); approximately 230 g excluding batteries115 × 86 × 43 mm; 245 g including batteries
In the boxUA-611 monitor, 22–32 cm SlimFit cuff, instruction manual and four AA batteries in the UK packMonitor, soft 22–42 cm cuff, four AAA alkaline batteries and instructions

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