GoKawiilHuawei's Watch D3 Uses an Inflatable Cuff to Measure Blood Pressure
Huawei has unveiled the Watch D3, a smartwatch that monitors sleep and exercise like typical wearables but stands out for its built-in blood pressure sensor. Instead of relying on optical estimation methods common in other smartwatches, the device inflates a small cuff mechanism on the wrist to take a more direct pressure reading.