Fira is another famous tourist city in Santorini. Fira tends to be larger with more things to do, places to eat, shops, more people and different kind of views ! Personally I preferred Oia to have my hotel in and to do a day trip to Fira. Oia is quieter, has the blue/white domes and has stunning sunset views !
You can take a city bus from Oia to Fira . It is less than 2 Euro per person. There is also a stunning walk between the two cities. It is about a three hour walk. Would not recommend this walk on a hot day. We were only in Fira for a few hours. We visited multiple stores, explored the city and had snacks . There are multiple art galleries and museums in Fira . If you have the time – definitely worth checking out Lonely Planet’s Fira Recommendations and visiting a few.
Sharing some photos from our day trip to Fira below :