The Realme 9 is an excellent budget phone with so many advanced features. System developed on Android 12 and Realme UI 3.0 based on Android 12 makes the phone more comfortable for a modern user.
The Realme 9 supports eSIM. If you want to use an eSIM, you should contact your SIM card provider, register an eSIM card, and create a profile for yourself. You create multiple profiles on one eSIM and can use them by transforming from one profile to another.
Regarding the Realme 9, it’s an excellent phone overall considering budget and features.