Here are a couple we highlight: 1. Since Realm is not a relational database with an ORM, we don't run into the impedance mismatch. Relationships are first-clas

Here are a couple we highlight: 1. Since Realm is not a relational database with an ORM, we don't run into the impedance mismatch. Relationships are first-class citizens. 2. Realm uses a zero-copy architecture. Objects and collections are lazy loaded offering benefits to both memory use and speed.