Medical Hardware on the Wrist
Huawei released the Watch D3 on September 9, 2026. This third iteration of its blood-pressure-monitoring wearable continues the company's focus on pump-based hardware. While many competitors rely on optical sensors to guess blood pressure, the D3 houses a physical pump and an inflatable airbag within its strap. The device holds CE certification as a medical product under EU Medical Device Regulation standards.
The D3 weighs 40 grams and measures 11.3 millimeters in thickness. This represents a reduction in size from the D2, yet the device remains bulky compared to standard smartwatches. The increased mass is necessary to contain the internal hardware required for accurate pressure readings. It arrives with two strap sizes to accommodate various wrists.
Testing the Clinical Performance
During testing, the watch produced consistent results. Users must sit still and place their hand over their chest during measurements. The strap tightens around the wrist to perform the reading, which takes approximately one minute. The device supports ambulatory blood pressure monitoring, or ABPM, which tracks changes over a 24-hour period. It also measures blood pressure before and after physical activity and tracks metrics at different altitudes.
Battery life lasts about five days with standard usage, though this drops to roughly one day when ABPM is enabled. The 1.92-inch display reaches 3,000 nits of brightness. While the device handles phone notifications, users must install the Huawei Health app to access data. This reliance on a specific app brings questions regarding data privacy and storage, an issue Huawei executives address by citing local compliance with European privacy laws.
Design Constraints and Market Outlook
Practicality remains a mixed bag. The watch has an IP68 rating, but Huawei specifies that users should not swim or shower while wearing it. Water can interfere with the internal sensors and the accuracy of the readings. Furthermore, the device is not water-resistant while the pump is active. These limitations reflect the mechanical nature of the blood pressure system.
The user interface appears busy compared to other mainstream options. Owners will need time to adjust to the menu layouts and notification systems. Huawei remains the primary player in this specific segment of cuff-based wearables, offering a solution for people who need medical-grade tracking without the noise of traditional upper-arm monitors. The D3 will be available in the UK on September 23 for £399.99 in Black, Gold, and Mocha Gold.