How to Enable “Hey Siri” in iOS to Activate Siri With Voice Only for a True Hands-Free Experience
Siri received a magnificent boost in iOS with faster understanding and greatly improved comprehension, but a lesser obvious option was also added; the ability to summon Siri with just your voice. With this “Hey Siri” feature enabled, Siri will be actively listening and waiting for your commands, but only whenever the iPhone or iPad is connected to a power source. This enables a true hands-free experience with Siri and iOS and is well worth trying out.