Realme has begun releasing September 2021 OTA update for Realme C25. This update doesn't bring the latest security patch but improvements in the system and Glance for Realme.
Realme C25 was released on 27th March,2021 with Android 11 out-of-the box.
This update comes with the Glance feature with this update which adds on exquisite and informative content access.
This update was released on 15th September 2021.

Source>>Realme Community
| Android OS | Update | Release Date/Status | Estimated Months |
| Android 11 | Out-of-the-box | March 2021 | Nil |
| Android 12 | First OS update | expected | unconfirmed |
| Android 13 | Second/Last OS update | – | – |
The Realme C25 came with Android 11 out-of-the-box and it’s anticipated that it receives an Android 12 update
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Hence, for Realme C25 Android 13 Update will be the last major OS update on this device.
The Realme C25 came out with Android 11 with out-of-the-box.
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