The details aren’t always completely accurate, as it’ll depend how well your phone can work out your location, but even as a guide they can be a fun way to start spotting constellations.
Some people also like to load up a stargazing app onto their phone before they look skywards, too, and these can definitely act as a handy guide. With some apps, you can hold a phone up to the night sky and it will use your location to show what stars you might be able to see. The details aren’t always completely accurate, as it’ll depend how well your phone can work out your location, but even as a guide they can be a fun way to start spotting constellations.