Omron

RS4

Release date not published

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

Measuring

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Medaval attributes STRIDE BP adult self-measurement recommendation to HEM-6181 equivalence, while noting that its unpublished assessment cannot be verified against MDR requirements.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
TypeUsersAppValidatedReleased
Wrist2No––
Wrist2No––
Wrist2No––

Sources

  1. omron-healthcare.co.uk/products/rs4
  2. omron-healthcare.nl/producten/rs4
  3. omron-healthcare.co.uk/storage/im-hem-6181-e-en-05-01-2022.pdf
  4. medaval.ie/resources/EN/devices/Omron-RS4-HEM-6181-E.html

Photo: OMRON Healthcare official exact-model Dutch gallery; isolated RS4 monitor and its integral wrist cuff, complete supplied photograph and studio background retained.

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