Beurer BM 51 easyClip vs Microlife BP 3AS1-2

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BM 51 easyClip compared with BP 3AS1-2
BeurerBM 51 easyClipMicrolifeBP 3AS1-2
Overview
Released––
Measuring
TypeUpper armUpper arm
Clinically validated–Yes
Irregular heartbeat detectionYesNo
AFib detection or ECGNoNo
MethodAutomatic oscillometric upper-arm measurement during inflation; exact UK item 65204. First-sale date unresolved; maker launch notice dated 14 January 2020 does not confirm the first retail daySemi-automatic oscillometric upper-arm measurement with capacitive pressure sensor. Hand inflation using pump integrated into handle; automatic deflation and digital pressure/pulse results. O/I button interrupts measurement and releases cuff pressure. Actual first retail date unresolved
AccuracyManual display accuracy ±3 mmHg for systolic and diastolic pressure and ±5% for pulse; systolic range 60–255 mmHg, diastolic 40–200 mmHg and pulse 40–199 beats/minute. Cuff-pressure range 0–300 mmHg is separateFebruary 2024 exact guide gives systolic/diastolic range 20–280 mmHg, pulse 40–200 bpm, 1 mmHg pressure resolution, static pressure accuracy ±3 mmHg and pulse accuracy ±5% of reading
Clinical validationMaker datasheet and launch notice claim ESH clinical validation, but Medaval reports no peer-reviewed exact-device validation evidence. Independently established clinical validation remains unresolved; headline flag omittedNathan and colleagues, Blood Pressure Monitoring 2015, tested exact Microlife 3AS1-2 in 45 pregnant women including 15 with pre-eclampsia. Overall B/A grade under the British Hypertension Society protocol and passed the study's ISO mean-difference standard; pregnancy-only subgroup A/A. These are study-specific findings, not evidence for every population named in generic maker text
FeaturesIrregular-heartbeat warning, coloured classification scale, cuff-fit check and automatic switch-off. No ECG, dedicated AFib detection, resting indicator or voice outputManual inflation, automatic measurement/deflation, low-battery and inflation indicators. Flashing heart indicates detected pulse, not irregular-heartbeat screening. No AFib detection, ECG or automatic triple-measurement mode
Cuff
Cuff fits22–42 cm22–32 cm
CuffSupplied easyClip universal cuff for 22–42 cm upper-arm circumference, replacement item 164.161. Spring bracket opens for attachment before the hook-and-loop fastener is secured; distinct from easyLock cuff systemsSupplied M 22–32 cm cuff; optional L 32–42 cm. Single-tube cuff with T-connector attaches at the back of the device
Connections and memory
Users2 (better)1
Readings stored100 per user (better)1
Bluetooth and appNoNo
MemoryTwo users with 100 dated readings each; oldest overwritten when full. Averages of all stored readings and morning/evening readings over the latest seven days. Holding both function buttons for five seconds deletes the selected user's complete historyOne latest measurement retained until the next measurement or battery removal. Hold O/I for at least three seconds to recall. No dated history, user selector or averaging
AppNo Bluetooth or radio transfer. Maker Scan & Save feature uses a smartphone camera to read the display into beurer HealthManager Pro; it is not a connection from the monitorNo Bluetooth, USB or phone-app transfer
PowerFour 1.5 V LR6 AA alkaline batteries included; manual approximately 500 measurements depending on blood pressure and inflation pressure. Optional 6 V DC / 600 mA mains supply; manual lists EU item 071.95 and UK item 072.05. Batteries are removed for mains operationTwo 1.5 V AAA alkaline cells; approximately 780 measurements using new batteries. Current guide does not recommend 1.2 V rechargeable cells. Generic guarantee wording about an optional adaptor does not establish a mains socket or mains operation
Design
Display detailsWhite illuminated display with black digits, maker 7.4 × 6.4 cm; physical START/STOP, SET, memory and plus/minus buttons. Date/time and low-battery indicator; manual IP22LCD showing systolic, diastolic and pulse readings; single O/I button. IP20
SizeManual and current web dimensions 138 × 103 × 46 mm (L × W × H); 2021 datasheet instead states 44 mm height. Manual approximately 570 g with cuff and without batteries, datasheet 571 g under the same conditions; current web table's 711 g excluding packaging has unspecified weighing conditions68 × 186 × 48.5 mm (width × length × height); 310 g including batteries, excluding cuff in global support table
In the boxMonitor, easyClip 22–42 cm cuff, four AA batteries, storage bag and instructions. Current product page additionally lists a blood pressure record; mains supply sold separatelyExact guide establishes monitor with integrated pump and M 22–32 cm cuff; complete regional accessory list unresolved

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