Realme has started the Realme UI 3.0 with Android 12 stable update rollout for the Realme C25s model. The update was reported on 6th July 2022 and this update is also incremental. It will be rolled in batches to ensure no bugs are found and later on, the full rollout process will be finished after complete assurance.
Realme C25s was released in June ,2021 with Android 11 Realme UI 2.0 out-of-the-box.
Realme C25s received the Open Beta application update which was opened on 13th May 2022 to invite users to participate in the Beta program. It's good news for C25s users since the Android 12-based Realme UI 3.0 stable update has been released now. We don't have much information on this yet. Stay tuned for more subsequent updates for Realme C25s.
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Previously, the device received the May 2022 security patch update which fixed some system issues and improved stability. For full changelog information, refer to this post - Realme C25s: May 2022 Security Patch with A.20 Build
Update Tracker —->>>>> Realme C25s

Source: Realme Community
| Android OS | Update | Release Date/Status | Estimated Months |
| Android 11 | Out-of-the-box | June 2021 | Nil |
| Android 12 | First OS update | July 2022 | 9 months |
| Android 13 | Second/Last OS update | unconfirmed | – |
The Realme C25s came with Android 11 out-of-the-box and it has finally received the Android 12 stable update in July 2022. The device was in the beta stage since 13th May 2022.
The device may/may not be eligible for the Android 13 update. We should wait for the official information from the company.
Once the update is available on your device, you can head over to Settings >> About Phone >> Software Update section to update your Realme device with the latest security/software update.
For more Realme Android updates please download our Android App – Available on the Play Store