Samsung's Galaxy S25 introduces Google Gemini as its default digital assistant, allowing users to summon it directly via the power button. While Bixby, the longtime assistant since 2017, remains available and will continue to function, Samsung is prioritizing Gemini's features, including new action chaining capabilities across apps. This change reflects Samsung's acknowledgment of Gemini's popularity compared to Bixby, though both assistants will coexist on the device.