You can check the version number of the phone system through About Phone, and you can also turn on the developer mode through the build number.
View method
realme UI 7.0: Settings > About device > Version > Version No.
realme UI 1.0 & 2.0 & 3.0 & 4.0 & 5.0 & 6.0: Settings > About phone/device > Version > Build number.
realme UI R & S & T & Go & U Edition: Settings > About phone/device > Version> Build number.
Build number
The build number is the identification number of the system version. It can be used to determine which minor version the phone system is in.
Baseband number
The baseband version is the driver version number used by the modem of the phone. The modem is mainly responsible for the communication functions of the phone (calling, texting, etc.).
Kernel version
The kernel version is the version number of the hardware driver assembly (such as motherboard, GPS, camera, WiFi, Bluetooth, etc.) of the phone.
ColorOS version
The ColorOS version refers to the ColorOS version corresponding to the phone system version.