Beurer BM 85 vs Microlife BP B3 BT

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

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BM 85 compared with BP B3 BT
BeurerBM 85MicrolifeBP B3 BT
Overview
Released2014–
Measuring
TypeUpper armUpper arm
Clinically validated–Yes
Irregular heartbeat detectionYesYes
AFib detection or ECGNoNo
MethodAutomatic oscillometric upper-arm measurement during inflation; exact UK item 65803. July 2014 retail test establishes the sale year; first-sale month unconfirmedOscillometric upper-arm measurement during deflation. Single measurement or MAM automatic triple mode, with 15-second intervals and an additional fourth measurement if one result is questionable. 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 separateExact June 2020 guide gives blood pressure 20–280 mmHg and pulse 40–200 bpm; global support instead lists systolic 60–255 and diastolic 40–200 mmHg. Static pressure accuracy ±3 mmHg and pulse accuracy ±5%; cuff-pressure display 0–299 mmHg is separate
Clinical validationMaker datasheet claims technical identity with BP3ESH5 and ESH validation. Medaval records a specific-population study using a non-standard protocol and unpublished internal DHL data; independent standard-protocol exact-device validation not established, so headline flag omittedSTRIDE BP lists home use in adults and people with diabetes, with validated 22–42 cm cuff, by approved equivalence to BP B3 AFIB and its 2021 ISO 81060-2 study. This is not a separate B3 BT trial or evidence of AFib screening. Broader special-population claims in maker guide are not promoted to independently verified exact-model validation
FeaturesIrregular-heartbeat warning, coloured LED classification scale, HSD haemodynamic resting indicator and cuff holder. No ECG or dedicated AFib screening; current UK table says no electronic cuff-fit checkGeneric irregular-heartbeat indication, not AFib-specific screening or ECG. Cuff-fit, movement and signal checks; pressure classification scale, date/time, pulse and automatic switch-off after approximately one minute
Cuff
Cuff fits22–42 cm–
CuffCurrent maker manual and UK bundle specify 22–42 cm circumference. Technik zu Hause's 2014 tested bundle supplied a 22–36 cm cuff with a separate optional 35–44 cm cuff; current supplied cuff is not inferred from the old reviewSupplied cuff size not established by recovered global support and guide. Optional S 17–22, M 22–32, M-L 22–42, L 32–42 and L-XL 32–52 cm cuffs listed; registry validated cuff size is not proof of the supplied bundle. Washable cover, with bladder removed
Connections and memory
Users22
Readings stored60 per user99 per user (better)
Bluetooth and appYesYes
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. Deletion clears the entire selected user memory; individual readings cannot be deletedTwo histories of 99 readings each, with timestamps and oldest overwritten when full. MyBP considers up to four appropriately timed readings per day in the last 28 days, requiring at least 12; separate 28-day average available. Suboptimal cuff-fit readings excluded from these averages. MyCheck compares the latest reading with the stored average. Whole selected user history can be cleared, individual saved values cannot
AppBluetooth Low Energy transfer to beurer HealthManager Pro; USB transfer uses the HealthManager Pro USB uploader and permits app/web viewing. Current manual states compatibility with Bluetooth 4.0 smartphones/tablets; the 2021 datasheet lists Bluetooth 5.0 among supported-device requirements, not an exact monitor radio versionBluetooth 4.2 to Microlife Connected Health+. June 2020 guide compatibility is iOS 8 or Android 4.4.2 and later; these are historical guide minimums, not a promise of current app support. Pairing can synchronise date/time. No USB-transfer socket in exact controls
PowerBuilt-in 3.7 V / 400 mAh lithium-ion battery; approximately 50 measurements per charge depending on blood pressure and pump pressure. USB charging from PC or supplied USB mains part; minimum two-hour recharge instruction when depleted. This is rechargeable battery operation, despite the web table's mains-operated labelFour 1.5 V AA alkaline cells; approximately 920 measurements with new batteries. Optional Microlife DC 6 V, 600 mA adaptor stops battery-current use while connected. NiMH cells require external charging, not charged inside monitor
Design
Display detailsIlluminated LCD with black digits, maker 7.0 × 6.5 cm; illuminated sensor touch controls, date/time and battery level. IPX0 according to manualLCD showing pressure, pulse, user, date/time, memory, cuff-fit and Bluetooth indicators. ON/OFF, memory, MAM and user buttons; cuff and DC sockets. IP20
SizeManual 180 × 99 × 40 mm (L × W × H), approximately 456 g with cuff. Datasheet also gives 456 g but says without batteries despite the built-in cell. Web table gives 51 mm height and 638 g excluding packaging without comparable conditions; retained as source differences138 × 94.5 × 62.5 mm; 402 g including batteries in exact guide and global maker support
In the boxMonitor, cuff, cuff holder, USB cable, USB mains part and storage pouch; instructions and quick-start guide available from maker. Regional supplied plug differs; current UK table identifies Euro plugExact global supplied-accessory list not established; optional cuffs and mains adaptor are not treated as bundled. Guide identifies exact BP B3 BT, distinct from BP B3 AFIB and USB-equipped BP B3 Comfort PC

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