Which Smartwatches Accurately Measure Blood Pressure?
The complete guide to choosing a smartwatch with reliable blood pressure measurement
How Do Smartwatches Measure Blood Pressure?
Before we look at the best models, let's understand how these devices work. Most use two basic methods:
📊 Optical Method (PPG)
Sensors on the back of the watch "read" changes in blood flow under the skin. It's the same technology that measures your heart rate.
⚡ Electrical Sensors (ECG)
Some more sophisticated models combine the optical method with sensors that record the electrical activity of the heart, similar to a doctor's electrocardiogram.
⚠️ Important Notice: No smartwatch replaces a medical device. The measurements are indicative and not diagnostic!
The Best Smartwatches for Blood Pressure Measurement (2024-2025)
1. Samsung Galaxy Watch 6 & Galaxy Watch Ultra
Why it stands out: It is medically approved and uses advanced sensors. Requires initial calibration with a traditional blood pressure monitor.
Advantages:
- Approval by health authorities
- High accuracy after calibration
- Continuous monitoring 24/7
- Detailed historical data in the Samsung Health app
Disadvantages:
- Requires recalibration every 4 weeks
- Available only in certain countries
- Works best with Samsung phones
2. Huawei Watch D
Why it stands out: It uses a small inflatable cuff like traditional blood pressure monitors, providing greater accuracy.
Advantages:
- Very high accuracy
- No need for frequent calibration
- Medical certification
- Automatic measurements at scheduled times
Disadvantages:
- More bulky
- The measurement takes longer.
- Not for continuous monitoring all day long
3. Omron Heart Guide
Why it stands out: The most medically reliable smartwatch with FDA approval. It uses an inflatable strap.
Advantages:
- Clinically proven accuracy
- FDA approval
- No calibration needed
- Large measurement history
Disadvantages:
- Very expensive
- Limited smart features
- Big and heavy
4. Fitbit Sense 2
Why it stands out: It provides indirect pressure readings via a stress sensor and ECG.
Advantages:
- Identifies moments of high stress
- Long battery life
- Affordable price
- Friendly application with analytical data
Disadvantages:
- Does not measure pressure directly
- Less expensive for people with hypertension
5.Garmin Venus 3
Why it stands out: It does not measure blood pressure directly, but provides complete health monitoring for an overall picture.
Advantages:
- Advanced sleep and recovery tracking
- Irregular heartbeat alerts
- Ideal for athletes
- Long battery life
Disadvantages:
- Does not measure pressure
- Quite expensive
💡 Important to know:
Some models may not have an active pressure measurement function in Greece or Europe due to regulations. Check before purchase.
How to Choose the Right Smartwatch
🎯 What to watch out for
- Medical Approvals: Prefer models with approval from recognized authorities (FDA, CE Medical).
- Measurement Method: Watches with an inflatable cuff are more expensive but less comfortable.
- Calibration: Pay attention to the calibration frequency with a traditional blood pressure monitor.
- Compatibility: Check if the watch works with your mobile phone (Android or iPhone).
- Health Application: It must display understandable graphs and measurement history.
- Battery life: Make sure the watch lasts at least one day.
📋 Tips for Accurate Measurements
- Wear the watch tightly, 2 fingers above the wrist
- Sit quietly for 5 minutes before the measurement.
- Avoid coffee and smoking 30 minutes before
- Keep your hand at heart level.
- Measure at the same time every day
- Calibrate according to instructions
- Compare with a traditional blood pressure monitor regularly
Which Watches to Avoid
The market has many cheap watches that promise blood pressure measurement but are not reliable:
- Unknown brands: Random values without actual measurement.
- Without Approvals: No mention of medical approvals or tests.
- Too cheap: Reliable technology costs money. Too cheap = usually unreliable.
- Without Calibration: Do they promise accuracy without any calibration? Be careful.
💰 Prices and Offers
Reliable smartwatches: €200–€500+. Huawei Watch D around €350, Samsung Galaxy Watch 6 from €250, Omron HeartGuide around €500.
Advice: Wait for deals (Black Friday, Christmas) for better prices.
summarizing
Measuring blood pressure with a smartwatch is possible, but not all watches are reliable. For better accuracy, choose: Samsung Galaxy Watch 6 (with Samsung phone), Huawei Watch D (inflatable cuff) or Omron HeartGuide (health and budget priority).
Remember, however: No smartwatch replaces a doctor.
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