The AI features on Samsung's Galaxy S25 phones uses both on-device and cloud-based AI models, including the touted AI assistant.

Galaxy AI's multitasking and proactive suggestions is made possible Gemini's ability to work across apps. Gemini works with Samsung Calendar, Notes, Reminder, and Clock and third-party apps to perform tasks for the user without having to switch between apps.

Samsung's Galaxy S25 phones are all about AI. But the Ultra also gets a larger screen and a slightly refreshed look with smooth corners.