Samsung’s Galaxy S25 is a great device, and it does genuinely raise the bar on smartphone AI. But for home and business users, the fact this is a device that’s all about AI has come too soon for its buyers to fully understand how to stay AI-safe, or even the questions they should ask. All that should be factored in to any decision to switch.

Samsung Electronics Co. plans to launch an ultrathin version of its Galaxy S25 phone in the first half of this year, beating Apple Inc. to a promising new category.