问题
I know this might be unanswerable until the Apple Watch is released.
But does anyone know if there may be a way to determine the rough distance (in feet) between an Apple Watch and an iPhone?
回答1:
Currently, the WatchKit framework does not give you this kind of information, since third-party apps are still quite limited in what they can do. For example, they require a connection to the iPhone.
There is some speculation that later this year, third-party developers will be given more access to the hardware, e.g., bluetooth, accelerometer, pulse, NFC, etc.
来源：https://stackoverflow.com/questions/29421807/is-there-a-way-to-determine-rough-distance-between-apple-watch-and-iphone