ios - Do I need an Apple Watch app to communicate between iPhone and Apple Watch? -

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i have iphone app , want heart rate information paired apple watch in realtime. question need watch version (or interface) of iphone app on watch in order communicate watch , information in realtime?

can please walk me through steps in order make connection , realtime data watch iphone? need use healthkit or watch connectivity api in order this? confused @ point.

thanks.

this question answered on @ apple developer forums

basically, watch video. if skip ~32:00 minutes, keynote speaker called mark implementing healthkit in it's watch app. bpm monitored after authorizing on iphone app may use healthkit , refresh heartbeat every ~4 seconds.

high level overview:

  • yes, need watch version of iphone app realtime data.
  • create companion app, , request read access healthkit heart rate measurement.
  • then start workout session app

you may find link helpful sample code: watch os 2.0 beta: access heart beat rate


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