Blood pressure wearables are not all measuring the same thing.
Some devices use an inflatable wrist cuff to produce systolic and diastolic readings. Others estimate blood pressure from optical sensor data after calibration with a traditional cuff. A third group does not provide blood pressure numbers at all but can track ECG, heart rhythm, resting heart rate, HRV, sleep, or patterns associated with possible hypertension.
Treating these functions as interchangeable can be misleading.
The FDA has warned consumers not to rely on unauthorized smartwatches, smart rings, or software features that claim to measure blood pressure without appropriate regulatory review. Inaccurate measurements may delay medical care or lead to unsafe treatment decisions.
This guide explains what each device actually measures, how it works, where it is medically regulated, and whether you still need a traditional upper-arm cuff.
We prioritized:
- Current-generation products
- Honest separation of blood pressure readings from related heart metrics
- Regulatory status for the specific function
- Clinical validation where available
- Calibration requirements
- International availability
- ECG and heart-rhythm features
- Battery life and everyday usability
- Transparent limitations
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Last updated: July 2026
Quick Answer
HUAWEI WATCH D2 is the best true blood pressure smartwatch for readers in supported European and international markets. It uses a miniature inflatable airbag inside the strap to take oscillometric blood pressure measurements and can run a 24-hour ambulatory monitoring plan. It is CE-MDR-certified as a medical device but is not FDA-cleared for sale as a blood pressure monitor in the United States.
Hilo Band is the best option for automatic day-and-night blood pressure trends. It is a screenless, cuffless optical bracelet that requires periodic calibration with the included upper-arm cuff. The European Hilo Bracelet G1 is CE-marked as a Class IIa medical device. Aktiia’s related G0 system received FDA 510(k) clearance in 2025, but US availability and the exact consumer model must be checked separately.
Samsung Galaxy Watch8 is the best mainstream smartwatch that provides systolic and diastolic estimates after calibration with a traditional cuff. It also provides ECG and broader health tracking, but blood pressure availability depends on the country, compatible Samsung phone, software, and local regulatory approval.
Apple Watch Series 11 is the best iPhone-compatible heart-health smartwatch. It does not provide blood pressure readings in mmHg. Its FDA-cleared hypertension notification feature instead analyzes 30-day vascular patterns and may alert the wearer to possible chronic high blood pressure.
Withings ScanWatch 2 is the best long-battery hybrid watch for ECG and broader heart-health monitoring. It does not measure blood pressure, but it tracks ECG, SpO2, heart rate, temperature, activity, and sleep with a battery lasting up to approximately 35 days.
Top Picks at a Glance
| Product | Blood pressure function | Medical or regulatory position | Best for |
|---|---|---|---|
| HUAWEI WATCH D2 | Inflatable wrist cuff provides BP readings | CE-MDR-certified; not FDA-cleared for US BP use | Best true BP smartwatch outside the US |
| Hilo Band | Calibrated cuffless day-and-night estimates | G1 CE Class IIa; related G0 FDA-cleared | Best continuous BP trends |
| Samsung Galaxy Watch8 | Calibrated systolic and diastolic estimates | Availability and authorization vary by region | Best Android smartwatch with BP |
| Apple Watch Series 11 | No BP numbers; possible hypertension notifications | Hypertension feature FDA-cleared | Best iPhone heart-health watch |
| Withings ScanWatch 2 | Does not measure BP | ECG and medical features vary by region | Best hybrid ECG watch with long battery |
How This Article Differs From Our Blood Pressure Monitor Guide
This article covers wrist-worn wearables and smartwatches.
It does not replace a validated upper-arm cuff.
Readers who want a conventional monitor for regular home measurements should compare our guide to the best FDA-cleared smart blood pressure monitors.
That guide focuses on upper-arm devices such as Withings BPM Vision, OMRON Evolv, iHealth Track, iHealth Neo, and Withings BPM Connect.
This guide instead answers three different questions:
- Which wearables actually produce blood pressure readings?
- Which devices only screen for possible hypertension?
- Which watches track related cardiovascular data without measuring blood pressure?
1. HUAWEI WATCH D2
Best true blood pressure smartwatch outside the United States
HUAWEI WATCH D2 is the closest product in this guide to combining a full smartwatch with a conventional blood pressure monitor.
A narrow inflatable airbag is built into the strap. When a measurement begins, the strap inflates around the wrist and uses the oscillometric method to produce systolic and diastolic readings.
The watch can take individual measurements or run an ambulatory blood pressure monitoring plan with readings scheduled across the day and night.
What It Actually Measures
HUAWEI WATCH D2 provides:
- Systolic blood pressure
- Diastolic blood pressure
- Pulse
- Single-lead ECG
- Heart rate
- SpO2
- Sleep
- Stress
- Activity and workouts
Unlike Apple Watch, it displays actual blood pressure values rather than only a possible-hypertension notification.
Regulatory and Validation Status
WATCH D2 is CE-MDR-certified as a medical device and is positioned for ambulatory blood pressure monitoring in supported European markets.
It is not FDA-cleared as a blood pressure monitor in the United States and is not an appropriate choice for a US reader seeking an FDA-authorized device.
What We Like
- Inflatable wrist cuff rather than purely optical estimation
- Individual and 24-hour measurement modes
- CE-MDR medical-device certification
- ECG and broader smartwatch features
- Works with compatible Android phones and iPhones
- Up to several days of battery life
- Available through official Huawei and European Amazon stores
The strap is bulkier than a standard smartwatch band, but the design is far more wearable than carrying a conventional cuff throughout the day.
Main Weakness
Wrist measurements are sensitive to arm position. Users must follow the positioning instructions carefully and keep the wrist at the correct height.
The device is also not officially positioned as an FDA-cleared blood pressure monitor for US buyers.
Who Should Avoid It?
HUAWEI WATCH D2 may not suit:
- US readers specifically seeking an FDA-cleared blood pressure device
- People who find wrist-positioning instructions difficult
- Users who prefer a lightweight conventional smartwatch strap
- Buyers who need a device validated for a specific medical condition
- Anyone whose wrist does not fit the approved strap range
Best For
Choose HUAWEI WATCH D2 when you live in a supported market and want a smartwatch that takes cuff-based blood pressure readings rather than relying solely on an optical estimate.
2. Hilo Band
Best for automatic day-and-night blood pressure trends
Hilo Band is the current name for the wearable system previously associated with Aktiia.
It is not a conventional smartwatch. There is no large screen, app grid, messaging, or GPS-focused interface.
Instead, it is a lightweight optical bracelet designed to collect blood pressure data automatically while the wearer is still, including during sleep.
How It Works
The band uses photoplethysmography and pulse-wave analysis to estimate blood pressure.
The system includes:
- Hilo Band
- Hilo app
- Upper-arm calibration cuff
- Periodic recalibration
- Doctor-ready reports
- A subscription
The current European system requires periodic recalibration with the supplied cuff.
Regulatory Status
The Hilo Bracelet G1 is CE-marked under the European Medical Device Regulation as a Class IIa medical device.
Aktiia’s G0 Blood Pressure Monitoring System received FDA 510(k) clearance in July 2025.
However, FDA clearance applies to the specific G0 system. It should not automatically be transferred to every Hilo model or European product configuration.
The exact model and market must therefore be confirmed before describing a consumer product as FDA-cleared.
What We Like
- Automatic day-and-night data collection
- Designed around long-term blood pressure patterns
- CE-marked European consumer system
- Related technology has FDA clearance
- Clinical validation and published research
- Included calibration cuff
- Lightweight, screenless design
- Shareable reports
Hilo is easier to sleep in than a large smartwatch and is less distracting because it has no bright display or notifications.
Main Weakness
The product requires both calibration and an ongoing subscription.
It is also primarily a blood pressure monitoring service rather than a full smartwatch. Readers wanting calls, navigation, workouts, ECG, and phone apps will need another device.
US availability remains model-specific and should not be assumed from the European product page.
Who Should Avoid It?
Hilo may not suit:
- Buyers who do not want an ongoing subscription
- People who want a traditional smartwatch screen
- Users unwilling to recalibrate with an upper-arm cuff
- Anyone expecting ECG, GPS, calls, and smartwatch apps
- US buyers who have not confirmed the exact FDA-cleared model
Best For
Choose Hilo when automatic blood pressure patterns across work, sleep, meals, activity, and medication matter more than smartwatch features.
3. Samsung Galaxy Watch8
Best mainstream Android smartwatch with calibrated BP estimates
Samsung Galaxy Watch8 combines a full smartwatch with blood pressure, ECG, sleep, activity, stress, and heart-rate features.
The blood pressure function does not use an inflatable cuff inside the watch.
Instead, the watch is calibrated against a separate upper-arm blood pressure monitor. Samsung then uses optical sensor data to estimate systolic and diastolic pressure.
Calibration Requirements
Samsung requires:
- A compatible Galaxy Watch
- A compatible Samsung Galaxy phone
- Samsung Health Monitor
- Three calibration measurements using an upper-arm cuff
- Recalibration every 28 days
- The same wearer and wrist used during calibration
The watch then displays estimated systolic pressure, diastolic pressure, and pulse.
Regulatory and Regional Limitations
Blood pressure functionality is available only in supported markets.
Buyers must verify:
- Country support
- Watch model
- Phone compatibility
- Samsung Health Monitor availability
- Current software
- Local regulatory status
A Galaxy Watch imported from another country may not activate local medical features.
The watch may be sold in a country even when the blood pressure feature itself is unavailable there.
What We Like
- Produces systolic and diastolic estimates
- ECG and irregular-rhythm features
- Full smartwatch functions
- Current-generation Galaxy Watch hardware
- Sleep, activity, stress, and fitness tracking
- Widely available internationally
- More versatile than a dedicated BP bracelet
Main Weakness
It still requires a validated upper-arm monitor for calibration and recalibration.
The blood pressure function is not universally available, and it is designed for tracking rather than independently diagnosing hypertension or changing treatment.
It is also a poor choice for iPhone users because current Galaxy Watches require Android, and advanced health functions generally depend on a compatible Samsung Galaxy phone.
Who Should Avoid It?
Galaxy Watch8 may not suit:
- iPhone users
- People without a compatible Samsung phone
- Buyers in countries where Samsung Health Monitor blood pressure is unavailable
- Anyone unwilling to recalibrate every 28 days
- Users who need a standalone medical blood pressure monitor
Best For
Choose Galaxy Watch8 when you already use a compatible Samsung phone and want one smartwatch for calibrated blood pressure estimates, ECG, sleep, fitness, and everyday apps.
Check the current price on Amazon for Samsung Galaxy Watch8
4. Apple Watch Series 11
Best heart-health smartwatch for iPhone users
Apple Watch Series 11 does not measure blood pressure in mmHg.
It cannot replace an upper-arm monitor, HUAWEI WATCH D2, or Hilo Band.
Its blood pressure-related function is a hypertension notification feature that analyzes how blood vessels respond to heartbeats over rolling 30-day periods. The watch may notify the user when the pattern suggests possible chronic high blood pressure.
What It Tracks
Depending on age, country, model, and software, Apple Watch can provide:
- Possible hypertension notifications
- Single-lead ECG
- Irregular rhythm notifications
- High and low heart-rate alerts
- Sleep apnea notifications
- Heart rate
- Sleep and sleep score
- Activity and workouts
- Temperature-related trends
- Fall and crash detection
The hypertension feature is available only on supported models, software versions, and markets.
What the Notification Does Not Mean
A notification is not:
- A blood pressure reading
- A diagnosis
- Proof that medication is needed
- Proof that blood pressure is normal when no notification appears
The feature should be treated as a screening tool rather than a substitute for cuff measurements.
What We Like
- FDA-cleared hypertension notification feature
- Strong ECG and rhythm monitoring
- Deep iPhone integration
- Broad international availability
- Mature health-data ecosystem
- Fall, crash, and emergency features
- No cuff calibration required for hypertension notifications
Main Weakness
It does not provide systolic or diastolic readings.
Anyone purchasing it specifically because they need to measure and manage diagnosed hypertension will still need a validated cuff-based monitor.
Battery life is also much shorter than Hilo or ScanWatch 2.
Who Should Avoid It?
Apple Watch Series 11 may not suit:
- Android users
- People needing actual systolic and diastolic readings
- Buyers expecting a medical blood pressure monitor
- Anyone wanting several weeks of battery life
- Users whose country does not support the relevant medical features
Best For
Choose Apple Watch Series 11 when you use an iPhone and want broad heart-health screening, ECG, safety features, fitness, and possible-hypertension notifications rather than direct blood pressure readings.
Check the current price on Amazon for Apple Watch Series 11
5. Withings ScanWatch 2
Best hybrid watch for ECG and long battery life
Withings ScanWatch 2 looks more like a traditional analog watch than a full-screen smartwatch.
It does not measure blood pressure and does not provide hypertension notifications like Apple Watch.
Its value is broader heart and recovery monitoring with significantly longer battery life.
What It Tracks
ScanWatch 2 provides:
- Single-lead ECG
- Heart rate
- Irregular rhythm or AFib-related functions where supported
- SpO2
- Respiratory data
- Body-temperature variation
- Sleep stages
- Activity and workouts
- Recovery-related data
- Up to approximately 35 days of battery life
Medical features and their exact regulatory status vary by country.
What We Like
- ECG in a traditional watch design
- Exceptionally long battery life
- Small, discreet display
- Sleep and recovery tracking
- No daily charging routine
- Compatible with iPhone and Android
- Broad US and European availability
It is the easiest device in this guide to wear as an ordinary watch. The trade-off is that detailed information is viewed in the Withings app rather than on a large wrist display.
Main Weakness
ScanWatch 2 does not measure blood pressure.
The words “heart health” on a product page should not lead readers to assume it can produce blood pressure numbers.
Some deeper insights may also be connected to optional subscription services.
Who Should Avoid It?
ScanWatch 2 may not suit:
- Buyers who need blood pressure readings
- People who want a large touchscreen smartwatch
- Users who need extensive third-party apps
- Anyone expecting hypertension notifications
- Buyers who want built-in GPS without carrying a phone
Best For
Choose ScanWatch 2 when ECG, heart rate, sleep, recovery, discreet design, and long battery life matter more than blood pressure measurement or full smartwatch apps.
Which Devices Actually Measure Blood Pressure?
The distinction can be summarized simply.
Produces Blood Pressure Readings
- HUAWEI WATCH D2: Inflatable wrist cuff
- Hilo Band: Calibrated cuffless optical estimates
- Samsung Galaxy Watch8: Calibrated optical estimates
Screens for Possible Hypertension Without BP Numbers
- Apple Watch Series 11
Tracks Related Heart Data but Not Blood Pressure
- Withings ScanWatch 2
Heart rate, ECG, HRV, SpO2, and blood pressure are different measurements.
A device that records ECG or HRV should never be described as measuring blood pressure unless it provides a separately authorized blood pressure function.
Why We Did Not Rank OMRON HeartGuide
OMRON HeartGuide was one of the first FDA-cleared wearable wrist blood pressure monitors.
It used an inflatable cuff built into the watch strap and remains an important product historically.
However, the BP8000 HeartGuide is now difficult to buy through normal authorized retail channels and has been listed as discontinued while remaining available through scattered third-party sellers.
We therefore did not rank it as a leading current purchase.
Buying old stock can create problems with:
- Battery condition
- Warranty
- Replacement straps
- App support
- Correct wrist size
- Returns
- Regional compatibility
Why WHOOP MG Is Not a Blood Pressure Recommendation
WHOOP MG is the current successor to the old WHOOP Strap 4.0.
It offers ECG and a Blood Pressure Insights feature that provides estimated daily blood pressure after cuff calibration.
WHOOP describes the feature as a wellness tool rather than a medical device. The FDA has challenged that position and stated that blood pressure measurement is a medical-device function.
Until the regulatory position is fully resolved, we do not recommend WHOOP MG as a medical blood pressure monitor.
It may still be useful for fitness, recovery, sleep, HRV, and strain tracking, but those are different purchase goals.
How to Choose a Blood Pressure Wearable
Decide Whether You Need Numbers or Screening
Choose a device that provides systolic and diastolic readings when you need to record actual blood pressure values.
Choose Apple Watch when possible-hypertension notification is useful but direct readings are not the main goal.
Choose ScanWatch 2 when ECG, heart rate, sleep, and long battery life matter more than blood pressure.
Check the Exact Regulatory Status
Regulatory authorization is attached to:
- A particular device
- A specific software feature
- A defined intended use
- A country or region
Do not assume that a CE-marked European product is FDA-cleared in the United States.
Do not assume that clearance of Hilo G0 automatically covers Hilo G1.
Do not assume a health feature works on an imported smartwatch.
Understand Calibration
Cuffless and optical systems may require comparison with a conventional upper-arm monitor.
Calibration does not permanently prove accuracy. The wearer may need to recalibrate regularly, use the same wrist, and follow strict positioning instructions.
Check Phone Compatibility
- Apple Watch requires an iPhone.
- Galaxy Watch8 blood pressure functions generally require a compatible Samsung Galaxy phone.
- HUAWEI WATCH D2 supports compatible Android phones and iPhones, but feature availability can differ.
- Hilo and Withings depend heavily on their mobile apps.
Consider Subscriptions
Hilo is sold as an ongoing monitoring service.
WHOOP also requires a membership for its main insights.
Apple, Samsung, Huawei, and Withings can be used without a required subscription for core hardware functions, although optional paid services may exist.
Can Wearables Replace an Upper-Arm Monitor?
Not completely.
Cuffless blood pressure technologies are promising, but the category is not yet proven accurate enough to replace validated upper-arm monitors for diagnosis and treatment decisions in every situation.
A validated upper-arm monitor remains the safest reference for:
- Confirming unexpected readings
- Calibrating compatible wearables
- Sharing standardized home measurements
- Managing diagnosed hypertension
- Discussing medication with a clinician
For reliable cuff-based options, see our guide to the best smart blood pressure monitors for home use.
Blood Pressure, Sleep, and Time of Day
Blood pressure naturally changes across the day and night.
Sleep, stress, exercise, meals, caffeine, medication, posture, and measurement timing can all influence readings.
A continuous wearable may reveal patterns that isolated measurements miss, but more data does not automatically mean more accurate conclusions.
Taking confirmation measurements at consistent times and supporting a stable circadian rhythm can make trends easier to interpret.
Safety and Medical Limitations
Do not start, stop, or change blood pressure medication based only on a smartwatch, bracelet, or app.
Unexpected wearable results should be confirmed with a validated upper-arm monitor and discussed with a qualified healthcare professional.
The American Heart Association advises repeating a reading above 180/120 mmHg after at least one minute.
When readings remain above that level and symptoms such as chest pain, shortness of breath, weakness, numbness, vision changes, back pain, or difficulty speaking are present, emergency help is required.
Follow your local emergency number rather than relying on an app alert.
Frequently Asked Questions
What Is the Best Blood Pressure Smartwatch?
HUAWEI WATCH D2 is the strongest true smartwatch for blood pressure measurement in supported European and international markets because it uses an inflatable wrist cuff.
It is not FDA-cleared for US blood pressure use.
Which Wearable Is FDA-Cleared for Blood Pressure?
Aktiia’s G0 Blood Pressure Monitoring System received FDA 510(k) clearance in July 2025.
The exact Hilo model and US consumer availability must still be confirmed before purchase.
OMRON HeartGuide was also FDA-cleared but is now difficult to obtain through normal authorized retail channels.
Does Apple Watch Measure Blood Pressure?
No.
Apple Watch Series 11 can issue possible-hypertension notifications based on vascular patterns, but it does not provide systolic and diastolic readings.
Does Samsung Galaxy Watch8 Measure Blood Pressure?
Galaxy Watch8 can provide systolic and diastolic estimates through Samsung Health Monitor after calibration with an upper-arm cuff.
Availability depends on the country, phone, software, and regulatory status.
Does Hilo Require a Blood Pressure Cuff?
Yes.
The system includes an upper-arm cuff for initial and periodic calibration.
The bracelet then collects optical measurements automatically while the wearer is still.
Can a Smartwatch Diagnose Hypertension?
No consumer smartwatch should independently diagnose hypertension.
Repeated cuff measurements and professional assessment remain important.
Is a Wrist Blood Pressure Monitor as Accurate as an Arm Cuff?
Wrist-based devices can be sensitive to position and technique.
A properly validated upper-arm cuff remains the preferred reference for most home users.
Is ECG the Same as Blood Pressure?
No.
ECG records the heart’s electrical activity. Blood pressure measures the force of blood within the arteries.
A watch can provide ECG without measuring blood pressure.
Is HRV the Same as Blood Pressure?
No.
HRV measures variation in the time between heartbeats. It can provide information about recovery and autonomic activity but does not provide systolic or diastolic pressure.
Final Verdict
HUAWEI WATCH D2 is the best current smartwatch for actual wrist-cuff blood pressure readings in supported non-US markets.
Hilo Band is the best dedicated wearable for automatic day-and-night blood pressure trends, provided you accept calibration and an ongoing subscription.
Samsung Galaxy Watch8 is the best all-purpose Android smartwatch with calibrated blood pressure estimates where the feature is locally supported.
Apple Watch Series 11 is the best iPhone-compatible heart-health smartwatch, but its hypertension feature screens for patterns rather than measuring blood pressure.
Withings ScanWatch 2 is the best long-battery hybrid for ECG, sleep, heart rate, and recovery data, but it should not be described as a blood pressure monitor.
The most important buying question is not which watch has the longest health-feature list.
It is whether the product measures blood pressure, estimates it after calibration, screens for possible hypertension, or does not measure it at all.
ABOUT THE AUTHOR
Anita is the founder and writer behind Healthy Home Upgrade, where she shares her passion for transforming living spaces into foundations for smart health and wellness. Driven by her personal health journey, her goal is to provide valuable, practical articles that empower readers to use technology and design to improve their quality of life.
