Huawei Watch D3 at £400: Should You Buy the First Slim Blood Pressure Watch or Wait for Apple Watch Series 12?
Huawei just launched the Watch D3 — the thinnest medical-grade blood pressure smartwatch ever made — at its Munich event on September 2. Six days later, Apple is expected to reveal its own blood pressure approach on the Apple Watch Series 12. If you care about tracking blood pressure from your wrist, this is the first time you have had two credible options from major manufacturers. The question is which approach is right for you — and whether you should buy now or wait.
Best For Clinical BP
Huawei Watch D3 uses a physical cuff for medical-grade readings. The closest thing to an arm cuff on your wrist.
Best Ecosystem
Apple Watch Series 12 will offer BP trend notifications inside Apple Health for iPhone users — no cuff required.
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What Makes the Huawei Watch D3 Different?
The Watch D3 is not using optical sensors or algorithms to guess your blood pressure. It has a physical inflatable airbag built into the wristband that inflates against your wrist — the same mechanism your doctor uses with a traditional arm cuff, miniaturized to fit a watch strap. This cuff-based approach has medical device certification in Europe and delivers clinical-grade systolic and diastolic readings.
The headline feature is 24-hour ambulatory blood pressure monitoring (ABPM). You can set the watch to take readings automatically at intervals throughout the day and night — including while you sleep. Nocturnal blood pressure dipping is a medically significant marker that most wrist-based devices cannot measure. The Watch D3 can.
Huawei has also made the Watch D3 significantly more wearable than its predecessor. At 11.3mm thick (down from 13.3mm on the Watch D2), it is approaching normal smartwatch territory. The 1.92-inch LTPO AMOLED display hits 3,000 nits and looks excellent outdoors. Bluetooth 6 and built-in GPS round out the spec sheet.
How Does Apple Watch Series 12 Blood Pressure Compare?
Apple is taking a fundamentally different approach. The Apple Watch Series 12, expected at the September 9 event, reportedly uses optical sensors and an eight-sensor array to detect blood pressure trends over time. Rather than giving you a specific systolic/diastolic number, Apple's system is designed to notify you if your readings suggest you may be developing hypertension.
This is a screening tool, not a clinical instrument. It is more convenient — no cuff inflation, no pause in activity — but less precise. Apple's approach is reportedly awaiting FDA clearance for hypertension notifications, which would make it a first-of-its-kind regulatory approval.
| Feature | Huawei Watch D3 | Apple Watch Series 12 |
|---|---|---|
| BP Method | Physical cuff (medical-grade) | Optical sensors (trend-based) |
| Readings | Exact systolic/diastolic | Trend notifications only |
| 24-Hour ABPM | Yes | No (continuous trend only) |
| Night Monitoring | Yes, during sleep | TBD |
| Price | £400 / €450 (~$540) | ~$399 (expected) |
| US Availability | No | Yes |
| Ecosystem | Huawei Health (Android) | Apple Health (iPhone) |
Who Should Buy the Huawei Watch D3?
The Watch D3 is for people who need actual blood pressure numbers — not trend alerts. If your doctor has asked you to monitor your blood pressure regularly, or if you are managing hypertension and want to replace a standalone arm cuff with something you wear all day, the Watch D3 is the only smartwatch that delivers clinical-grade readings in a practical form factor.
The catch: it is only available in the UK and Europe. US buyers cannot purchase it directly due to trade restrictions on Huawei products.
Who Should Wait for Apple Watch Series 12?
If you are a US buyer, or if you want blood pressure tracking integrated into the Apple ecosystem alongside heart rate, ECG, sleep, and fitness data, the Series 12 is the better fit — even if its BP measurements are less precise. Apple's advantage is convenience: no cuff, no interruption, seamless integration with AirPods Pro 3 hearing health and the broader Apple Health platform.
The Apple September 9 event is six days away. If you are considering any Apple Watch purchase, wait until then — the Series 11 ($300) and Ultra 3 ($640) prices will likely drop after the announcement.
What About Samsung and Garmin?
Samsung's Galaxy Watch 9 and Galaxy Watch Ultra 2 have Samsung BioActive sensors but rely on optical blood pressure estimation similar to Apple's rumored approach. Neither offers cuff-based clinical measurements.
Garmin's Fenix 9 lineup is the gold standard for sports tracking and battery life, but does not offer blood pressure monitoring at all. If blood pressure is your priority, the Huawei Watch D3 and Apple Watch Series 12 are the only serious contenders this fall.
The Bottom Line
The Huawei Watch D3 is a genuine medical device on your wrist — the first blood pressure smartwatch slim enough to wear comfortably all day. At £400, it is a compelling alternative to carrying a separate arm cuff. But its limited availability (no US sales) and the Huawei ecosystem's relative weakness outside Asia and Europe are real drawbacks.
For most buyers — especially in the US — waiting six days for the Apple Watch Series 12 reveal on September 9 is the smarter play. You will know exactly what Apple's blood pressure approach looks like, and current-gen smartwatch prices will drop. The best deals right now are in our smartwatch buying guide.
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Quick answers covering accuracy, availability, pricing, and how wrist-based BP monitoring compares to traditional arm cuffs.
Is the Huawei Watch D3 available in the United States?
No. Due to ongoing US trade restrictions on Huawei, the Watch D3 is only available in the UK and Europe. US buyers looking for blood pressure monitoring should wait for the Apple Watch Series 12, expected September 9, 2026.
How accurate is the Huawei Watch D3 blood pressure reading?
The Watch D3 uses a physical inflatable cuff built into the wristband, the same mechanism used in clinical blood pressure monitors. It holds medical device certification in Europe and has been validated against traditional arm cuffs in clinical studies, making it significantly more accurate than optical-only approaches.
Will Apple Watch Series 12 have blood pressure monitoring?
Apple is expected to announce a blood pressure notification feature on the Series 12 at its September 9 event. However, Apple's approach uses optical sensors to detect trends and notify you of potential hypertension — it does not provide clinical blood pressure readings like the Huawei Watch D3's cuff-based system.
Can the Huawei Watch D3 measure blood pressure while sleeping?
Yes. The Watch D3's 24-hour ambulatory blood pressure monitoring (ABPM) feature can automatically take readings at set intervals throughout the day and night, including during sleep. This is a first for a consumer smartwatch at this thickness.
What is the difference between Huawei Watch D3 and Watch D2?
The Watch D3 is 15% thinner (11.3mm vs 13.3mm), has a larger 1.92-inch display (up from 1.82 inches), adds Bluetooth 6, reaches 3,000 nits brightness, and features softer, more comfortable wristbands. Blood pressure measurement accuracy and 24-hour ABPM remain the core feature.