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OMRON RS2 Wrist Blood Pressure Monitor

OMRON RS2 Wrist Blood Pressure Monitor

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  • ✔️ Clinically validated for accurate home blood pressure readings
  • ✔️ Stores up to 60 readings to track trends over time
  • ✔️ Compact wrist design ideal for travel and daily monitoring
  • ✔️ Detects body movement to flag potentially inaccurate readings
  • ✔️ Suitable for adults managing hypertension at home

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Is the Omron RS2 a Reliable Wrist Blood Pressure Monitor?

 

Keeping track of your blood pressure at home has never been more important. High blood pressure — or hypertension — often has no obvious symptoms, yet it significantly raises your risk of heart attack and stroke. The NHS recommends that people with hypertension, or those at risk, monitor their blood pressure regularly between GP appointments. The wrist blood pressure monitor from Omron, the RS2, is a compact, clinically validated device designed to make that process straightforward and accurate from the comfort of your own home.

Priced at just £36.32, the Omron RS2 offers an accessible way to stay on top of your cardiovascular health. It stores up to 60 readings in memory, so you can track trends over time and share results with your GP or pharmacist. If you're already managing other health conditions alongside hypertension, you might also find our Electrical Health and Diagnostic range useful for a broader view of your health monitoring needs.

 

How Does the Omron RS2 Wrist Monitor Measure Blood Pressure?

 

The Omron RS2 uses oscillometric technology — the same principle used in many clinical settings — to detect pressure fluctuations in the radial artery at the wrist. Here's how the process works:

  • The cuff inflates automatically around your wrist when you press the start button.
  • As the cuff deflates, the device detects oscillations (tiny vibrations) in the arterial wall caused by your heartbeat.
  • These oscillations are analysed to calculate your systolic pressure (the peak pressure when your heart beats) and diastolic pressure (the pressure between beats).
  • Your pulse rate is also recorded simultaneously.
  • Results appear on the digital display within approximately 30 seconds.

The device also features a body movement indicator, which alerts you if movement during the measurement may have affected accuracy — a genuinely useful feature for getting reliable readings at home.

 

Who Should Consider Using the Omron RS2 Monitor?

 

The Omron RS2 is designed for adults who need to monitor their blood pressure regularly outside of a clinical setting. Home blood pressure monitoring is particularly recommended by the NHS for people who have been diagnosed with hypertension, those whose GP suspects "white coat hypertension" (where readings are elevated in a clinical environment but normal at home), and people who are adjusting antihypertensive medication.

This device may be especially suitable for you if:

  • You have been diagnosed with high blood pressure and your GP has recommended home monitoring.
  • You find upper arm cuffs uncomfortable or difficult to use due to arm size or mobility issues.
  • You want a portable, travel-friendly monitor that fits easily in a bag.
  • You are monitoring your cardiovascular health as part of a broader wellness routine.

 

How Does the Omron RS2 Compare to an Upper Arm Blood Pressure Monitor?

 

Feature Omron RS2 (Wrist) Typical Upper Arm Monitor
Measurement site Wrist (radial artery) Upper arm (brachial artery)
Portability Highly portable, compact Bulkier, less travel-friendly
Ease of use Simple one-button operation May require assistance to fit cuff
Memory storage 60 readings Varies by model
Clinical validation Yes Varies by model

 

Is the Omron RS2 Suitable for Long-Term Home Use?

 

Yes — the Omron RS2 is built for regular, long-term home use. It runs on two AAA batteries (included) and is designed to withstand daily use over an extended period. The wrist blood pressure monitor format means it's easy to apply without assistance, which is particularly helpful for older adults or those with limited dexterity. Accuracy depends on correct positioning: your wrist must be held at heart level during measurement, as readings taken below or above heart height can be misleading.

If you're managing multiple health conditions alongside hypertension, it's worth exploring our Vitamins and Supplements range, which includes products that support cardiovascular and general health. Always discuss any supplement use with your GP or pharmacist, particularly if you are taking prescribed medication for blood pressure.

This product is a medical device. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

OMRON RS2 Wrist Blood Pressure Monitor specifications
Treatment category Blood pressure monitoring / Cardiovascular health
Mechanism of action Oscillometric measurement of radial artery pressure
Effective for Measuring systolic and diastolic blood pressure and pulse rate
Suitable for Adults requiring home blood pressure monitoring
Active ingredient N/A — medical device
Pack size 1 monitor, 1 wrist cuff, 2 AAA batteries, storage case, instruction manual
UK classification Class IIa Medical Device
Preparation Electronic wrist cuff monitor
Route of administration Wrist (external application)
Memory 60 readings
Power source 2 x AAA batteries (included)

Specifications of OMRON RS2 Wrist Blood Pressure Monitor

 

What Is the Omron RS2 and What Is It Used For?

 

The Omron RS2 is a clinically validated wrist blood pressure monitor intended for non-invasive measurement of blood pressure and pulse rate in adults. It is used for home blood pressure monitoring — a practice the NHS actively encourages for people with hypertension, those at risk of cardiovascular disease, and anyone whose GP has recommended keeping a record of their readings between appointments.

Blood pressure is measured in millimetres of mercury (mmHg) and expressed as two numbers: systolic (the pressure when your heart beats) over diastolic (the pressure between beats). A normal reading is generally considered to be below 120/80 mmHg. Readings consistently at or above 140/90 mmHg may indicate hypertension, which requires medical assessment. The Omron RS2 helps you capture this data accurately and consistently at home.

 

What Do You Need to Know Before Using the Omron RS2?

 

The Omron RS2 is a medical device, not a medicine, so it does not carry the same contraindications as pharmaceutical products. However, there are important considerations before use:

  • Do not use this device as a substitute for medical diagnosis or treatment — always consult your GP if you are concerned about your readings.
  • People with arrhythmia (irregular heartbeat) may receive inconsistent readings; discuss home monitoring with your GP first.
  • Do not use the device on an injured, inflamed, or recently operated wrist.
  • Avoid using the device immediately after exercise, eating a large meal, smoking, or consuming caffeine — wait at least 30 minutes.
  • Pregnant women should consult their midwife or GP before relying solely on home monitoring.
  • This device is not intended for use on infants or children without specific medical guidance.

There are no known drug interactions, as this is a non-invasive monitoring device. However, if you are taking antihypertensive medication, your GP may want to review your home readings to adjust your treatment. If you are also managing conditions such as diabetes, our Diabetes Monitoring range includes devices that complement a broader home health monitoring routine.

 

How Should You Use the Omron RS2 Correctly?

 

Correct technique is essential for accurate readings. Even small errors in positioning can lead to misleading results. Follow these steps each time you take a measurement:

  1. Sit quietly in a chair with your back supported for at least five minutes before measuring.
  2. Avoid talking, crossing your legs, or moving during the measurement.
  3. Place the cuff on your left wrist, approximately one centimetre above the wrist bone, with the monitor facing upward.
  4. Rest your left arm on a flat surface and raise your wrist so the monitor is level with your heart.
  5. Press the start button and remain completely still until the reading is complete.
  6. Record the systolic, diastolic, and pulse readings displayed on screen.
  7. Take two or three readings, one minute apart, and note the average.
Indication Age Group Frequency Readings per Session
Hypertension monitoring Adults Twice daily (morning and evening) 2–3 readings, 1 minute apart
General wellness check Adults As advised by GP 2–3 readings, 1 minute apart
Medication adjustment monitoring Adults As directed by GP or pharmacist 2–3 readings, 1 minute apart

 

What Are the Possible Side Effects of Using the Omron RS2?

 

As a non-invasive medical device, the Omron RS2 does not cause systemic side effects in the way that medicines do. However, some users may notice minor issues related to physical use of the cuff.

Common issues:

  • Temporary redness or mild skin irritation at the cuff site, particularly with sensitive skin.
  • Slight discomfort during cuff inflation, especially if the cuff is applied too tightly.
  • Occasional inaccurate readings if the wrist is not held at heart level.

Less common issues:

  • Bruising at the wrist site if the cuff is applied incorrectly or used excessively.
  • Anxiety or distress in some individuals who become overly focused on their readings — known as "blood pressure obsession." If this applies to you, speak to your GP.

If you notice persistent skin irritation or discomfort, discontinue use and consult your pharmacist or GP. You may also find relevant products in our Pain Relief range if you experience any localised discomfort.

 

How Should You Store the Omron RS2?

 

  • Store in the provided protective case when not in use.
  • Keep in a cool, dry place away from direct sunlight, moisture, and extreme temperatures.
  • Do not store near strong magnetic fields or electronic equipment that may interfere with the device.
  • Remove batteries if the device will not be used for an extended period.
  • Keep out of reach of children.
  • Do not expose to water or immerse in liquid — this device is not waterproof.

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy the Omron RS2 wrist blood pressure monitor online in the UK?

You can buy the Omron RS2 wrist blood pressure monitor directly from Cured Pharmacy online for £36.32, with fast UK delivery. It is available without a prescription as it is a CE-marked medical device. No GP referral is needed to purchase it.

How does the Omron RS2 wrist blood pressure monitor work?

The Omron RS2 uses oscillometric technology to detect pressure changes in the radial artery at the wrist. The cuff inflates automatically, then deflates while the device analyses pulse wave oscillations to calculate your systolic and diastolic blood pressure and pulse rate. Results appear on the digital display within approximately 30 seconds.

How do I use the Omron RS2 step by step?

Sit quietly for five minutes, then place the cuff on your left wrist about one centimetre above the wrist bone with the monitor facing upward. Raise your wrist to heart level, press the start button, and stay completely still until the reading is complete. Take two or three readings one minute apart and record the average for the most reliable result.

What is the best time to take a blood pressure reading with the Omron RS2?

The NHS recommends taking readings in the morning before eating, drinking caffeine, or taking any medication, and again in the evening before bed. Avoid measuring immediately after exercise, a large meal, or smoking. Consistency in timing helps you and your GP identify meaningful trends in your readings.

Is the Omron RS2 clinically validated for accuracy?

Yes, the Omron RS2 has been clinically validated according to internationally recognised protocols for blood pressure measurement accuracy. Clinical validation means the device has been independently tested against a reference standard to confirm it produces reliable readings. Always ensure your wrist is at heart level during measurement to maintain that accuracy.

Who is the Omron RS2 suitable for?

The Omron RS2 is suitable for adults who need to monitor their blood pressure at home, including those diagnosed with hypertension, people whose GP suspects white coat hypertension, and those adjusting antihypertensive medication. It is not recommended for children without specific medical guidance. People with arrhythmia should consult their GP before relying on wrist-based monitoring.

What does a high reading on the Omron RS2 mean?

A reading consistently at or above 140/90 mmHg may indicate high blood pressure (hypertension) and should be discussed with your GP. A single high reading is not necessarily cause for alarm — factors like stress, caffeine, or incorrect positioning can temporarily elevate readings. If you record high readings on multiple occasions, contact your GP promptly.

How does the Omron RS2 compare to an upper arm blood pressure monitor?

Upper arm monitors measure pressure at the brachial artery and are generally considered the clinical gold standard, while wrist monitors like the Omron RS2 measure at the radial artery and are more compact and portable. Both can produce accurate readings when used correctly, but wrist monitors are more sensitive to positioning errors. The Omron RS2 is a good choice if you find upper arm cuffs uncomfortable or impractical.

How many readings can the Omron RS2 store in its memory?

The Omron RS2 stores up to 60 readings in its internal memory, allowing you to track your blood pressure over time. This is particularly useful when your GP asks for a log of your home readings to assess treatment effectiveness. You can scroll through stored readings directly on the device display.

Can I use the Omron RS2 if I have an irregular heartbeat?

People with arrhythmia (irregular heartbeat) may receive inconsistent or inaccurate readings with oscillometric wrist monitors, as the technology relies on detecting regular pulse wave patterns. The Omron RS2 does include a movement and irregular heartbeat indicator, but it is not a diagnostic tool for arrhythmia. If you have a known arrhythmia, speak to your GP before using this device as your primary monitoring method.

What are the alternatives to the Omron RS2 wrist blood pressure monitor?

Alternatives include upper arm blood pressure monitors, which are often preferred in clinical settings for their accuracy at the brachial artery. Other wrist monitor brands are available, but not all are clinically validated — always check before purchasing. You can browse our full Electrical Health and Diagnostic range for other validated monitoring options.

How long can I use the Omron RS2 for?

The Omron RS2 is designed for long-term home use and can be used indefinitely as part of an ongoing blood pressure monitoring routine. Omron devices are generally built to last several years with regular use. Replace the batteries when the low battery indicator appears, and have the device checked periodically if you suspect it is no longer reading accurately.

What should I do if I get an error reading on the Omron RS2?

Error readings on the Omron RS2 are usually caused by movement during measurement, incorrect wrist positioning, or the cuff being applied too loosely or too tightly. Wait one minute, reposition your wrist at heart level, ensure the cuff is snug but not tight, and try again. If errors persist, consult the instruction manual or contact Omron customer support.

Does the Omron RS2 require any calibration?

The Omron RS2 does not require routine user calibration — it is factory calibrated before sale. However, Omron recommends having the device checked against a calibrated reference monitor every two years to ensure ongoing accuracy. If you notice readings that seem inconsistent with clinical measurements, raise this with your GP or pharmacist.

Is the Omron RS2 suitable for use during pregnancy?

Monitoring blood pressure during pregnancy is important, as conditions such as pre-eclampsia can develop rapidly. However, pregnant women should consult their midwife or GP before relying solely on a home wrist monitor, as clinical-grade upper arm monitors are typically preferred in obstetric settings. Your midwife can advise on the most appropriate monitoring approach for your individual circumstances.

How Should You Use the Omron RS2 Wrist Blood Pressure Monitor?

Using the Omron RS2 correctly is essential for getting readings you can actually rely on. Small errors in technique — particularly wrist positioning — can lead to readings that are significantly higher or lower than your true blood pressure, which could affect clinical decisions made by your GP.

Avoid talking, moving, or crossing your legs during measurement. The device will display a body movement indicator if it detects interference that may have affected the result.

What Is the Correct Dose — or Measurement Frequency — for the Omron RS2?

Unlike medicines, the Omron RS2 does not have a "dose" — but measurement frequency matters just as much. Taking readings too infrequently gives an incomplete picture, while measuring obsessively can cause unnecessary anxiety. The table below outlines recommended monitoring frequency based on your situation.

When Is the Best Time to Use the Omron RS2?

Timing your measurements consistently makes your readings far more meaningful. The NHS recommends taking blood pressure readings in the morning before eating, drinking caffeine, or taking any prescribed medication, and again in the evening before bed. This twice-daily approach, maintained over at least seven days, gives your GP a reliable dataset to work with.

Avoid measuring immediately after waking, exercising, eating a large meal, smoking, or consuming alcohol. These activities can temporarily alter your blood pressure and produce readings that don't reflect your baseline. Aim to measure at roughly the same times each day for consistency.

How Long Can You Use the Omron RS2 For?

The Omron RS2 is designed for long-term home use and can be used as part of an ongoing monitoring routine for as long as your GP recommends. There is no set time limit on use. Omron recommends having the device checked against a calibrated reference monitor every two years to confirm ongoing accuracy.

Replace the batteries when the low battery indicator appears on the display. Store the device in its protective case when not in use to prolong its lifespan. If you notice readings that seem inconsistent with those taken at your GP surgery, raise this at your next appointment.

Do not exceed the recommended measurement frequency without medical advice. If in doubt, speak to your pharmacist.

What Are the Most Common Issues Associated With the Omron RS2?

Because the Omron RS2 is a non-invasive medical device rather than a medicine, it does not cause systemic side effects. However, some users do experience minor physical issues related to wearing the cuff, particularly with frequent use. These are generally mild and resolve quickly once the cuff is removed.

  • Temporary redness or mild skin irritation at the cuff site
  • Slight discomfort or pressure sensation during cuff inflation
  • Occasional inaccurate readings due to incorrect wrist positioning
  • Error messages on the display caused by movement during measurement

What Are the Less Common Issues With the Omron RS2?

Less commonly, some users report issues that are worth being aware of, particularly if you use the device very frequently or have sensitive skin at the wrist.

  • Bruising or localised tenderness at the wrist if the cuff is applied too tightly or used excessively
  • Skin indentation or temporary marking from the cuff edge after prolonged wear
  • Inconsistent readings in people with arrhythmia or very low blood pressure
  • Psychological distress or health anxiety in individuals who monitor their blood pressure excessively

If you find yourself checking your blood pressure many times a day and feeling anxious about the results, it is worth discussing this with your GP. Home monitoring should support your health management, not add to your stress.

What Are the Serious Concerns to Be Aware of With the Omron RS2?

The device itself does not pose serious health risks when used as directed. However, there are important safety considerations around how you interpret and act on your readings. A consistently high reading — at or above 140/90 mmHg — should never be ignored or self-managed without medical input. Equally, a very low reading (below 90/60 mmHg) may indicate hypotension and warrants prompt medical review.

Do not use the Omron RS2 as a substitute for clinical assessment. If you experience symptoms such as severe headache, chest pain, shortness of breath, or sudden visual disturbance alongside a high reading, call 999 immediately — these may be signs of a hypertensive emergency.

What Should You Do If You Experience Problems With the Omron RS2?

If you notice persistent skin irritation, bruising, or discomfort at the wrist site, stop using the device and allow the skin to recover before resuming. Adjust the cuff fit — it should be snug but not tight. If the problem continues, consult your pharmacist or GP.

If you are consistently getting error readings or results that seem very different from those recorded at your GP surgery, check your technique against the instruction manual. Ensure your wrist is at heart level throughout the measurement. If discrepancies persist, contact Omron customer support or ask your pharmacist to check the device.

Can the Omron RS2 Interact With Other Medical Devices or Conditions?

The Omron RS2 is not known to interact with medicines. However, it may produce unreliable readings in people with certain conditions, including arrhythmia, peripheral arterial disease, or very low blood pressure. People with pacemakers or other implanted electronic devices should consult their cardiologist before using any electronic blood pressure monitor, as a precaution.

Always inform your GP that you are using a home blood pressure monitor, and bring your device to appointments so readings can be compared with those taken in the clinic. This helps ensure your home readings are being interpreted in the correct clinical context.

If you are concerned about any issues related to using the Omron RS2, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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