Native (without-app) support for HealthKit

Do any health measuring devices (scales, BP monitors) feed directly into the Health app, without going through the manufacturer’s proprietary app?

I’ve been shopping for wireless scales and blood pressure monitors, and I think it would be easier to meet my goals if the instruments would simply dump their measurements directly into the Health app via HealthKit. The only wireless instruments I can find have proprietary apps to read the weight, blood pressure, heart rate, etc. Only some of these apps claim they are HealthKit-compatible.

Nine months after HealthKit became available to the public, not mentioning HK says something pretty dismal about how committed those manufacturers are to maintaining their products. One FAQ list promises support “in the near future;” it was posted half a year ago. Another boasts convenient data transfer through a wire with a state-of-the-art 30-pin connector! Now we’re cookin’ with gas!

Everything I read about HealthKit “support” says you are expected to open the proprietary apps, and have them bounce the data into Health. For my taste, this isn’t much more convenient than directly typing measurements from cheaper, non-wireless instruments; it doesn’t justify the expense.

Last June, right after the introduction at WWDC, 9to5Mac ran an article saying that HealthKit would be able to read some instruments directly, without the manufacturers’ having to write any apps. That’s the last word I can find on it.

Has the feature been dropped? I can imagine the manufacturers’ being difficult about it.