Why Realm is faster than SQLite?

Which is better realm or SQLite?

Realm can work smoothly without any additional settings, while SQLite may require a long time to choose the right configuration for the particular project. But when your projects will become more complex an large-scale, you will understand that using SQLite coupled with Room is a better option for you.

Is realm faster than core data?

Core Data is incredibly fast if you consider what it does under the hood to do its magic. But Realm is faster, much faster. Realm was built with performance in mind and that shows. As Marcus Zarra once said in a presentation, you don't choose Core Data for its speed.

Is realm DB good?

Since the inception of the platform, Android developers have had pretty much only one option for a database: SQLite. Although feature-rich and powerful, it wasn't quite what Android app developers needed.

Is PostgreSQL faster than SQLite?

SQLite 2.7. 6 is significantly faster (sometimes as much as 10 or 20 times faster) than the default PostgreSQL 7.1. 3 installation on RedHat 7.2 for most common operations.