Bixby is Samsung’s attempt to create a voice assistant to rival Amazon’s Alexa, Apple’s Siri, and Google’s Assistant. Samsung is the world’s biggest smartphone maker, which also has a successful line of home electronics, so it’s not surprising that it would try to create a voice interface to tie them all together.
Bixby’s features are very similar to other voice assistants. You can ask it the weather, set alarms or timers, make phone calls, send text messages, translate languages, do math, change your phone’s settings, or create routines of multiple steps.
However, Samsung phones all run Android, and most people prefer Google Assistant as their voice assistant because it’s better at answering general-purpose internet queries. Google Assistant can also launch apps and make calls, although it can’t change your phone’s settings.