Just found this statement on another release, confirming that it...

Just found this statement on another release, confirming that it is a separate app to the normal Mobvoi Health app. This will have a subscription component according to the early CardieX releases ... at which point we officially become a SaaS business :

From the images, the measurements recorded in each of these will contribute to your ArtyScore, which appears to be an overall health score. These features will live in an app separate from Mobvoi's current lineup of health applications and can apparently be measured with a special "Heart Health Sensor" that appears to be present on at least the GHT Pro.