Apple still leverages Siri, along with several new software updates and improvements, including the ability to play music from third-party services like Spotify, instead of being limited to Apple Music as has been the case since its launch in 2018. 
The smaller speaker has the same mesh covering on the outside as the original HomePod, albeit smaller, but it’s more of a spherical shape than the column-like shape of the bigger HomePod. The top screen on the Mini is used to indicate when Siri is listening to your voice commands and accepts touch controls for controlling volume and music playback.
The HomePod Mini has smart home controls, built-in assistant, and amazing sound while keeping security and privacy in mind.
The HomePod Mini provides 360-degree sound and is powered by the Apple S5 processor. It uses computational audio to adjust the audio that comes out of the speaker as it’s coming out, tuning it for ideal sound quality in real-time. 
Apple also announced several updates to Siri and HomePod, including CarPlay integration and a new intercom feature that will let you send a message to other HomePod’s in your house, along with sending messages to your family iPhones and AirPods.