how to get hapetic feed back when iphone is left behind

i still don't understand why apple has not added a vibration (hapetic feed back option to the already visual red dot and red phone with a line through it
Where do you expect haptic feedback ? On the phone (but you left it behind…) on the watch ?

Please be more precise on the use case.

In any case, such a request should be sent as a Feedback, for improvement suggestion.
how to get hapetic feed back when iphone is left behind
 
 
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