How to type a request to Siri instead of speakingType to query is an awesome accessibility feature and perfect for when you can't talk back to Siri.
It's exactly what it sounds like: A textual interface where you can write your queries to Siri, rather than ask them. When iOS 11 comes out in the fall, users will be able to turn on "Type to Siri" in their accessibility settings, which will let you write your commands to Siri, rather than shout them into space.
As of now, Type to Siri is an accessibility feature: It's designed for folks who may not be able to speak their queries and need a keyboard (or other switch control-based device) to do so, and a huge boon for them, too.
But even those without need for accessibility features may love this feature — Google's Assistant offers both a text and type interface, allowing for quick and quiet answers to questions when a typical voice query won't do, and a similar Siri option should prove very helpful for a variety of folks.
How to turn on Type to Siri
How to use your voice...
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How to type a request to Siri instead of speaking
