Samsung Galaxy S25 Ultra review: still the superphone to beat

The Ultra is Samsung's largest and greatest phone and is packed to the gills with the very latest technology, which means more artificial intelligence than ever before. The Guardian's journalism is independent. We will earn a commission if you buy something through an affiliate link. The Galaxy S25 Ultra is at the front of the line of a new wave of Android phones that promise to basically do everything for you. It combines Google's advanced AI assistance with numerous Samsung tools for writing, drawing, photography and chatting.