Digital Touch lets you send taps, sketches, and even your heartbeat to anyone else also using an Apple Watch.
If you somehow miss, dismiss, or don't get the notification when a Digital Touch comes in, don't worry. Your Apple Watch saves them and will show when you have Digital Touches you haven't seen. Think of it like the indicator on an unread mail message, just for the Friend's interface. And they're easy to see... once you know where to look!
Full story from the iMore Blog...
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