JavaLite is more than just an ORM, it includes an entire ecosystem for building apps, including: ActiveJDBC (ORM), ActiveWeb (web framework), DB-Migrator(for database migrations), JavaLite HTTP (web client for web services), Async (JMS processing), AppConfig (configuration of apps for different environments), builr-in logging, query statistics, and more I'm probably missing now. ActiveJDBC is easier to use and faster at runtime than Hibernate, and JavaLite used by many companies to build log lasting enterprise apps. Hibernate is more popular because it is older and there are books written about it.
If you want to build an app with Hibernate, you would still need to pull in various other technologies, such as Spring MVC (or equivalent) and a bunch of others, integrate them together, etc.
JavaLite is a one stop framework with all pieces integrated and tuned for fast development and runtime execution.