Beurer BM 58 vs Microlife BP 3AS1-2

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

Better figure, where one is clearly better

BM 58 compared with BP 3AS1-2
BeurerBM 58MicrolifeBP 3AS1-2
Overview
Released––
Measuring
TypeUpper armUpper arm
Clinically validated–Yes
Irregular heartbeat detectionYesNo
AFib detection or ECGNoNo
MethodAutomatic oscillometric upper-arm measurement during deflation; exact UK item 65516. First-sale date unconfirmed. Generic inflation icon on the web page conflicts with its technical table and exact manual operationSemi-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
AccuracyMaker display accuracy ±3 mmHg for systolic and diastolic pressure and ±5% for pulse; systolic range 60–260 mmHg, diastolic 40–199 mmHg and pulse 40–180 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 claims ESH clinical validation and 2014/2015 recognition. Medaval lists ESH self-measurement recommendation and DHL manufacturer-declared equivalence, but says exact-device equivalence has not been established to MDR requirements. Independently verified exact-device standard-protocol 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, touch-sensor controls, activation/lock switch and cuff holder. No ECG, dedicated AFib detection or haemodynamic resting indicator; current UK table says no electronic cuff-fit check despite a generic feature iconManual 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 fits22–30 cm22–32 cm
CuffSupplied upper-arm cuff for 22–30 cm circumference. Separate XL cuff 30–42 cm, maker item 163246; it is an optional accessory rather than the standard headline fitSupplied 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 stored60 per user (better)1
Bluetooth and appNoNo
MemoryTwo users with 60 dated readings each; oldest overwritten when full. Averages of all stored readings and morning/evening readings over the latest seven days. Holding MEM clears all readings in the selected user memoryOne 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
AppUSB transfer to beurer HealthManager PC software or HealthManager Pro USB uploader, with later app/web viewing. No Bluetooth radio; Scan & Save uses a smartphone camera to read the display rather than wireless transfer from the monitorNo Bluetooth, USB or phone-app transfer
PowerFour 1.5 V LR6 AA alkaline batteries included. Manual claims approximately 500 measurements depending on blood pressure and inflation pressure, while current web table says approximately 250. Optional 6 V DC / 600 mA mains part sold separately; battery and mains are alternative power sourcesTwo 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 detailsIlluminated black LCD with white digits; maker 8.1 × 12.2 cm. Touch-sensor controls and separate rear activation switch, date/time and battery indicator. IPX0 according to manualLCD showing systolic, diastolic and pulse readings; single O/I button. IP20
SizeManual and datasheet 100 × 150 × 58 mm (L × W × H), approximately 508 g with cuff and without batteries. Web table's 680 g excluding packaging lacks the same weighing conditions68 × 186 × 48.5 mm (width × length × height); 310 g including batteries, excluding cuff in global support table
In the boxMonitor, 22–30 cm cuff, USB cable, four AA batteries, storage bag and instructions. UK product page additionally lists a blood pressure record; mains part and XL cuff are separate accessoriesExact guide establishes monitor with integrated pump and M 22–32 cm cuff; complete regional accessory list unresolved

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