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

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.

Samsung launched Galaxy AI in last year's Galaxy S24, and this year, new and enhanced AI tools are by far the biggest change for the Galaxy S25. Samsung says some features might trickle down to older phones,