Beurer BM 81 easyLock vs Beurer BM 85

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BM 81 easyLock compared with BM 85

	BeurerBM 81 easyLock	BeurerBM 85
Overview
Released
Released	–	2014
Measuring
Type
Type	Upper arm	Upper arm
Irregular heartbeat detection
Irregular heartbeat detection	Yes	Yes
AFib detection or ECG
AFib detection or ECG	No	No
Method
Method	Automatic oscillometric upper-arm measurement during inflation; exact BM 81 easyLock item 65511. First on-sale date unconfirmed	Automatic oscillometric upper-arm measurement during inflation; exact UK item 65803. July 2014 retail test establishes the sale year; first-sale month unconfirmed
Accuracy
Accuracy	Maker display accuracy ±3 mmHg for systolic and diastolic pressure and ±5% for pulse; systolic range 50–250 mmHg, diastolic 30–200 mmHg and pulse 40–180 beats/minute. Cuff-pressure range 0–300 mmHg is not the systolic measuring range	Maker 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 separate
Clinical validation
Clinical validation	Maker claims clinical validation and ESH recognition; Medaval's April 2025 list places this model among monitors with internal or unpublished validation. Independent published exact-device validation not established; headline validation flag omitted	Maker 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 Medaval records a specific-population study using a non-standard protocol and unpublished internal DHL data; independent standard-protocol exact-device validation not established, so headline flag omitted
Features
Features	Cuff-fit check, irregular-heartbeat warning, coloured LED risk indicator, date/time and automatic switch-off. No ECG or haemodynamic resting indicator; not a continuous ambulatory monitor	Irregular-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 check
Cuff
Cuff fits
Cuff fits	24–40 cm	22–42 cm
Cuff
Cuff	Integrated easyLock upper-arm cuff with press-and-turn adjustment for 24–40 cm circumference; no separate tube or hook-and-loop fastener	Current 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 review
Connections and memory
Users
Users	2	2
Readings stored
Readings stored	120 per user (better)	60 per user
Bluetooth and app
Bluetooth and app	Yes	Yes
Memory
Memory	Two users with 120 dated readings each; oldest overwritten when full. Averages of all saved readings and morning/evening readings from the latest seven days. All readings saved to a user memory; deletion clears that user's entire memory, without individual-reading deletion or guest mode	Two 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 deleted
App
App	Bluetooth Low Energy transfer to beurer HealthManager Pro; can be used without the app. Current instructions specify compatibility with Bluetooth 4.0 smartphones/tablets, not an exact radio-generation claim	Bluetooth 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 version
Power
Power	Four 1.5 V AAA LR03 batteries included; approximately 300 measurements depending on blood pressure and inflation pressure. Battery replacement retains readings but requires resetting date/time. ETM's AA battery table conflicts with the exact maker manual and PC-WELT's AAA description	Built-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 label
Design
Display details
Display details	Non-illuminated LCD with white digits and coloured LED classification indicator; maker display dimensions 3.4 × 7.9 cm. Battery-level and cuff-fit indications; IP22	Illuminated LCD with black digits, maker 7.0 × 6.5 cm; illuminated sensor touch controls, date/time and battery level. IPX0 according to manual
Size
Size	Current manual gives 143 × 91 × 22 mm (L × W × H), approximately 280 g with cuff but without batteries. Web table reverses length/width and gives 327 g excluding packaging without the same battery condition	Manual 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 differences
In the box
In the box	Monitor with integrated 24–40 cm cuff, four AAA LR03 batteries, instructions and quick-start guide; no storage bag. UK product page additionally lists a blood pressure record	Monitor, 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 plug