Google announced the upcoming replacement of its Google Assistant with Gemini on Android phones, set for later this year. The transition will see Assistant phased out from most mobile devices and app stores. Google plans to upgrade other devices, including tablets and cars, to Gemini, which boasts enhanced features like music playback and direct actions from the lock screen. The company emphasizes improvements made to the Gemini experience, especially for existing Assistant users. More details about the transition will be shared in the coming months as Google prepares for the change.