Beurer BC 27 vs Microlife BP W90

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BC 27 compared with BP W90

	BeurerBC 27	MicrolifeBP W90
Overview
Released
Released	–	–
Measuring
Type
Type	Wrist	Wrist
Irregular heartbeat detection
Irregular heartbeat detection	Yes	Yes
AFib detection or ECG
AFib detection or ECG	No	No
Method
Method	Automatic oscillometric wrist measurement during deflation. Exact UK item 65904, EAN 4211125659042. Current page heading and download labels identify BC 27 despite BC 28 in its SEO title and range tile; linked manual identifies type BC 27, technical model BC 28. First-sale date unconfirmed	Automatic oscillometric wrist measurement during deflation; the October 2021 manual describes inflation followed by gradual pressure reduction. First on-sale date unresolved
Accuracy
Accuracy	Manual 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	Static pressure accuracy ±3 mmHg and pulse ±5% of readout. October 2021 manual gives blood pressure 20–280 mmHg and pulse 40–200 bpm; current support instead lists systolic 60–255 and diastolic 40–200 mmHg. Cuff-pressure display 0–299 mmHg is separate
Clinical validation
Clinical validation	Exact manual states a maximum permissible clinical-test standard deviation of 8 mmHg, but does not identify a published validation study. Medaval reports no peer-reviewed clinical validation information for BC 27; consumer laboratory tests do not establish clinical validation. Headline validation omitted	Maker claims BIHS validation through the measuring technology of BP 3BZ1-3. Medaval reports no published exact-model peer-reviewed validation found; headline validation remains unresolved rather than treating the related-model claim as an exact W90 trial
Features
Features	Irregular-heartbeat warning, coloured classification scale, date/time, application-error messages and automatic switch-off after approximately one minute. No dedicated AFib screening, ECG, movement detection, heart-level position indicator, resting indicator or voice output	Ordinary irregular-heartbeat indication, audible measurement signals, two independently enabled daily reminder alarms, low-battery warning and automatic switch-off after approximately one minute. No dedicated AFib screening or MAM sequence established
Cuff
Cuff fits
Cuff fits	14–19.5 cm	13.5–21.5 cm
Cuff
Cuff	Fixed wrist cuff for 14–19.5 cm circumference; exact manual requires the supplied attached cuff. Heart-level positioning is a user instruction, not an electronic position sensor	Wrist circumference 13.5–21.5 cm in exact October 2021 manual
Connections and memory
Users
Users	2	2
Readings stored
Readings stored	60 per user	99 per user (better)
Bluetooth and app
Bluetooth and app	No	No
Memory
Memory	Two users with 60 dated readings each; oldest overwritten when full. Average of all stored readings and seven-day morning (05:00–09:00) or evening (18:00–20:00) averages. Selected user memory can be cleared	Up to 99 dated readings for each of two user profiles; guest mode does not store readings. Time-button and memory-button sequence selects the user. Oldest reading overwritten when full; stored readings retained after cell replacement, while clock and alarms reset. History can be cleared for the selected user. Instructions establish individual recall, not an automatic average
App
App	No Bluetooth or connection from the monitor. Scan & Save captures the displayed values using a phone camera into beurer HealthManager Pro; not automatic wireless transfer	–
Power
Power	Two 1.5 V LR03 AAA batteries. Exact linked manual claims approximately 170 measurements depending on blood pressure and inflation pressure; current product table says approximately 300. No mains operation established	Two 1.5 V AAA alkaline cells, approximately 460 measurements with new batteries. NiMH cells supported with external charging. Polish product page's table says four AAA cells and DC 6 V, conflicting with its own two-cell package list and the exact manual; copied table is not adopted and no adapter interface is assigned
Design
Display details
Display details	LCD with black digits; current maker table gives 3.5 × 4.0 cm and claims illumination, while FAZ Kaufkompass's exact tested BC 27 has an unlit display. Illumination remains unresolved rather than assuming a hardware revision. Physical start/stop and memory controls, low-battery indicator; manual IP22	LCD with ON/OFF, memory and time buttons; IP20 in October 2021 manual
Size
Size	Exact linked manual 84 × 60 × 29 mm (L × W × H), approximately 92 g with cuff without batteries. Current web/data sheet instead gives 60 × 84 × 55 mm and approximately 171 g excluding packaging, without equivalent weighing conditions; conflict unresolved	68 × 68 × 70 mm including cuff in current support; 140 g including batteries
In the box
In the box	Monitor with attached cuff, two AAA batteries, storage box and instructions. Current product page and data sheet also list a blood pressure record	Monitor, storage box, two AAA alkaline batteries and blood-pressure diary listed by Polish maker page. Product resource is Polish; support and operating instructions include English. Photographs show distinct green-front and silver-front maker finishes, without inventing additional hardware configurations