5 Wearable Devices That Now Track Blood Pressure (and How Accurate They Are)

For decades, measuring blood pressure required inflating a cuff around your arm. That is changing. Several wearable devices now claim to measure blood pressure from your wrist, finger, or even your ear. The technology is exciting, but the marketing is ahead of the science in some cases. Here is an honest look at five blood pressure wearables and how they perform against the gold standard of cuff-based measurement.

1. Samsung Galaxy Watch Series (Select Models)

Samsung was the first major tech company to include blood pressure monitoring in a mainstream smartwatch. Available on Galaxy Watch 4, 5, 6, and 7 series, the feature uses photoplethysmography (PPG) sensors and pulse wave analysis to estimate blood pressure. Important caveat: it requires calibration against a traditional cuff-based monitor every four weeks, and it is approved as a wellness tool in South Korea but has not received FDA clearance in the United States as a medical device. Accuracy studies have been mixed. A 2022 validation study in the Journal of Medical Internet Research found that Samsung’s blood pressure readings were within 5 mmHg of cuff measurements about 70% of the time – reasonable for trend tracking but not reliable enough for diagnostic purposes. The real value is in continuous trend data: seeing how your blood pressure changes throughout the day, after meals, during exercise, and during sleep.

Why it matters for your metabolic age: Continuous blood pressure data reveals patterns that twice-daily cuff readings miss. Trends over weeks give you better inputs for understanding your metabolic health trajectory.

2. Omron HeartGuide

The Omron HeartGuide takes a different approach: it is essentially a miniaturized oscillometric blood pressure monitor in a wristwatch form factor. It contains an inflatable cuff inside the watch band that squeezes your wrist to measure blood pressure using the same technology as traditional arm cuff monitors. This gives it a significant accuracy advantage. The HeartGuide has received FDA clearance as a medical device and has been validated in clinical studies. A 2021 study in the Journal of Clinical Hypertension found agreement within 5 mmHg of upper arm readings in 85% of measurements. The trade-off is comfort and design: the watch is bulkier than a typical smartwatch, and the inflation cycle takes about 30 seconds and is noticeable. Battery life is also shorter due to the mechanical pump. But for accuracy among wearables, it is currently the gold standard.

3. Aktiia Bracelet

Aktiia uses optical sensors to measure blood pressure without a cuff or inflation, making it one of the first truly cuffless blood pressure wearables to receive European CE marking as a medical device. It takes readings automatically throughout the day and night, requiring initial calibration with a traditional cuff monitor. A validation study published in Blood Pressure Monitoring in 2022 showed that Aktiia met the European Society of Hypertension’s accuracy standards for ambulatory blood pressure monitoring. The device is particularly strong for nighttime blood pressure measurement, which is difficult to capture with traditional monitors and is clinically important for detecting non-dipping patterns. Available primarily in European markets as of early 2026, with broader availability expanding.

Why it matters for your metabolic age: Nighttime blood pressure patterns are strong predictors of metabolic aging. A device that captures them automatically provides data you cannot get from daytime-only monitoring.

4. Biobeat Medical-Grade Wrist Monitor

Biobeat offers a medical-grade wrist-worn device designed for clinical use rather than consumer wellness. It uses PPG sensors with proprietary algorithms and has been validated against arterial line measurements in hospital settings. A 2021 study in the Journal of Clinical Medicine found that Biobeat readings correlated strongly with invasive arterial blood pressure monitoring. However, this device is primarily available through healthcare providers rather than direct consumer purchase. It is most relevant for patients who need continuous monitoring after cardiac events, during medication titration, or in clinical research settings. If your doctor recommends continuous blood pressure monitoring, Biobeat represents the clinical-grade option.

5. Apple Watch (Future Models – Blood Pressure Expected)

Apple has been developing blood pressure monitoring for Apple Watch, with patents and research published since 2020. While no Apple Watch currently measures blood pressure, credible reports and patent filings suggest the feature may arrive in upcoming models. Apple’s approach appears to use a combination of PPG sensors and accelerometers to detect pulse wave velocity, which correlates with blood pressure. Given Apple’s track record with health features (ECG, blood oxygen, temperature sensing), their blood pressure implementation will likely prioritize clinical validation and FDA clearance. When it arrives, the massive Apple Watch user base will make it the most widely used blood pressure wearable overnight. Until then, Apple Watch tracks heart rate, heart rate variability, and cardio fitness – all of which are related to but not substitutes for blood pressure measurement.

The Accuracy Bottom Line

No wearable currently matches the accuracy of a properly used upper arm cuff monitor for individual readings. Where wearables add value is in continuous monitoring that reveals trends and patterns impossible to capture with twice-daily cuff readings. The ideal approach as of 2026: use a validated upper arm cuff monitor for your official readings and a wearable for continuous trend data between those readings. As the technology matures, the accuracy gap will narrow.

Your Blood Pressure Data Feeds Your Metabolic Age

However you measure your blood pressure, the data is most valuable when it is part of a complete metabolic picture. Penlago’s free MetaAge calculator combines blood pressure with blood sugar, BMI, and age to produce a metabolic age score in 60 seconds. Use your best available blood pressure measurement to get started.

Find out your metabolic age in 60 seconds – free at penlago.com.