For the Realme X3 in India, which debuted in June 2020 with Realme UI based on Android 10, Realme has announced the Android 12-based Realme UI 3.0 open beta programme. By going to Settings > Software Update on their smartphone, selecting Trial version > Apply Now, and providing the necessary information, those who are interested in trying out Android 12 with Realme UI 3.0 on their X3 can apply for it. If your application is approved, Realme UI 3.0 will be delivered to you.
However, keep in mind that because this is a beta build, it can contain flaws that negatively affect the user experience, so it's better to avoid using it on your main device. In order to install the open beta update on your X3, make sure it is running firmware with version RMX2081 11.C.13 or RMX2081 11.C.14, has at least 60% battery life, and has 5GB of free storage.
For more information on the Realme UI 3.0 open beta programme for the Realme X3, click the source link below.