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RS4
A wrist blood pressure monitor with a positioning guide, 60-reading memory and morning averages, without Bluetooth.
- Type
- Wrist
- Users
- 1
- App
- No
- Validated
- Yes
Product links
Specifications
Report a wrong or missing specMeasuring
- Type
- Wrist
- Clinically validated
- Yes
- Irregular heartbeat detection
- Yes
- AFib detection or ECG
- No
- Method
- Oscillometric wrist measurement; HEM-6181-E. First on-sale date not established
- Accuracy
- 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
- Medaval attributes STRIDE BP adult self-measurement recommendation to HEM-6181 equivalence, while noting that its unpublished assessment cannot be verified against MDR requirements.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
- 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
- 13.5–21.5 cm
- Cuff
- Wrist circumference 13.5–21.5 cm
Connections and memory
- Users
- 1
- Readings stored
- 60
- Bluetooth and app
- No
- 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
- No Bluetooth or OMRON connect transfer; a Bluetooth/app composition in the Dutch maker gallery conflicts with the exact manual and product specifications
- Power
- Two AAA alkaline batteries included; approximately 300 measurements with new alkaline batteries
Design
- Display details
- Digital LCD; IP22
- Size
- 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
- Monitor, storage case, two AAA batteries and instructions 1/2; UK product page also lists a blood pressure pass
Pros and cons
Pros
- Positioning indicator guides wrist height
- Morning weekly and recent-reading averages
- Storage case included
Cons
- One user with 60 stored readings
- No Bluetooth or app transfer
- No AFib screening or ECG recording
Closest rivals
Model | Type | Users | App | Validated | Released |
|---|---|---|---|---|---|
| Wrist | 2 | No | – | – | |
| Wrist | 2 | No | – | – | |
| Wrist | 2 | No | – | – |
Sources
- omron-healthcare.co.uk/products/rs4
- omron-healthcare.nl/producten/rs4
- omron-healthcare.co.uk/storage/im-hem-6181-e-en-05-01-2022.pdf
- medaval.ie/resources/EN/devices/Omron-RS4-HEM-6181-E.html
- Omron RS4 shown in use at a table: OMRON Healthcare official exact-model Dutch gallery; complete supplied in-use photograph and lifestyle background retained.


