When it comes to writing messages, Apple Watch limits you to use of canned responses, dictation and Scribble notes – now you can also write more complex messages manually, thanks to the recently-updatd FlickType Keypad.
The little app that does
FlickType is a $1.99 third-party keyboard app designed for iPhone that also then works as a gesture/swipe-type keyboard for the Messages app on your Apple Watch.
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Source: Computer World