Beurer BC 28 vs Omron RS4

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BC 28 compared with RS4

	BeurerBC 28	OmronRS4
Overview
Released
Released	–	–
Measuring
Type
Type	Wrist	Wrist
Clinically validated
Clinically validated	–	Yes
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 white UK item 65044, EAN 4211125650445; BC 27 dark-grey item 65904 has a separate maker product record. First-sale date unconfirmed	Oscillometric wrist measurement; HEM-6181-E. First on-sale date not established
Accuracy
Accuracy	Exact 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	Maker's pressure accuracy ±3 mmHg and pulse accuracy ±5%; systolic range 60–260 mmHg, diastolic 40–215 mmHg and pulse 40–180 beats/minute
Clinical validation
Clinical validation	Manual gives an unspecified clinical-test maximum permissible standard deviation of 8 mmHg for systolic and diastolic pressure, without identifying a published study. Medaval reports no peer-reviewed clinical validation information for BC 28; headline independently established validation omitted	Medaval attributes STRIDE BP adult self-measurement recommendation to HEM-6181 equivalence, while noting that its unpublished assessment cannot be verified against MDR requirements. Exact manual says pregnancy use has not been validated
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	Wrist-height positioning symbol and locator bars, cuff-wrap, movement, hypertension and irregular-heartbeat indicators; no AFib screening or ECG. Web page calls the guide LED, while the exact manual describes a display symbol
Cuff
Cuff fits
Cuff fits	14–19.5 cm	13.5–21.5 cm
Cuff
Cuff	Attached wrist cuff for 14–19.5 cm circumference. User must position the cuff at heart level; no electronic position guidance	Wrist circumference 13.5–21.5 cm
Connections and memory
Users
Users	2 (better)	1
Readings stored
Readings stored	60 per user	60
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 values and morning (05:00–09:00) or evening (18:00–20:00) readings over the latest seven days. Deletion clears the selected user's entire memory	60 readings for one user; latest two/three readings within ten minutes can be averaged. Four weeks of morning averages, using the first three readings each morning
App
App	No Bluetooth or connection from the monitor. Current Scan & Save support captures the displayed values using a smartphone camera into beurer HealthManager Pro; not automatic transfer	No Bluetooth or OMRON connect transfer; a Bluetooth/app composition in the Dutch maker gallery conflicts with the exact manual and product specifications
Power
Power	Two 1.5 V LR03 AAA alkaline batteries; exact manuals claim approximately 170 measurements depending on blood pressure and inflation pressure, while the current product table says approximately 300. Battery operation only	Two AAA alkaline batteries included; approximately 300 measurements with new alkaline batteries
Design
Display details
Display details	Non-illuminated LCD with black digits, maker size 3.5 × 4.0 cm. Physical start/stop and memory controls; low-battery indicator. Manual IP22	Digital LCD; IP22
Size
Size	Exact English and March 2022 multilingual manuals and January 2019 data sheet give 84 × 60 × 29 mm (L × W × H), approximately 92 g with cuff without batteries. Current product table instead gives 60 × 84 × 55 mm and 171 g excluding packaging, with weighing conditions unspecified; differences unresolved	Approximately 93 × 62 × 20 mm (W × H × L, excluding cuff); manual gives 86 g without batteries, versus web table's rounded 90 g
In the box
In the box	Monitor with attached cuff, two AAA batteries, storage box and instructions. Current product page also lists a blood pressure record. Dedicated English manual's footer is September 2019 despite its download filename using March 2022; newer multilingual manual has the same core specifications	Monitor, storage case, two AAA batteries and instructions 1/2; UK product page also lists a blood pressure pass