Huawei Watch D3 appears with two models and a clinical clue

Huawei Watch D3 has appeared in an Indonesian certification database under two model numbers, RIV-B10 and RIV-B11. The listing does not reveal the design, but a separate clinical trial gives us a much better idea of what Huawei has been working on.

Two Watch D3 models have been certified

The two entries were published by Indonesia’s e-Sertifikasi database on August 11 and August 12. Both name the Huawei Watch D3 and classify it as a smartwatch manufactured by Huawei Device.

That is the first official confirmation of the product name. An earlier Huawei smartwatch roadmap leak mentioned the Watch D3, but at that point it was still just an unconfirmed name attached to a possible 2026 release.

What separates RIV-B10 from RIV-B11 remains unclear. They could be different connectivity versions, regional variants or simply separate configurations, but the certification records do not provide enough information to say.

A clinical trial reveals the important part

The more useful clue comes from ClinicalTrials.gov. Huawei sponsored a completed study involving a wrist-worn ambulatory blood pressure monitor carrying the same RIV-B10 model number found in the Watch D3 certification.

The study enrolled 158 adults and ran from April 17 to June 15, 2026. Researchers compared readings from the Huawei device with a mercury sphygmomanometer while assessing its accuracy and safety against the latest ISO 81060-2 blood pressure validation standard.

No results have been posted, so we cannot say how well the device performed. Still, the matching model number confirms that blood pressure monitoring remains central to the Watch D3.

To remind, like Wellue BP Watch, the Huawei Watch D2 uses a miniature pump and inflatable airbag inside its strap to take cuff-style readings. The two devices are quite similar in the way they operate. The duo can also schedule measurements across a 24-hour period, giving it a very different purpose from watches that estimate blood pressure using optical sensors.

September is looking increasingly plausible

Huawei has confirmed a global launch event in Munich for September 2. The company has not said the Watch D3 will be there, but two fresh certifications and a recently completed clinical study make the timing difficult to ignore.

There is still plenty we do not know, including the design, price, battery life and what has changed from the D2. There are also some claims about possible glucose monitoring. But this should also be treated cautiously because neither the certification nor the clinical record mentions it.