Why is the A32 5G only eligible for 2 major Android updates, why the A51 5G get 3 major updates?

[davinp]

Why is the A32 5G only eligible for 2 major Android updates, why the A51 5G get 3 major updates?

Neither phone is eligible for Android 14, but the A51 5G shipped with Android 10 while the A32 5G shipped with Android 11.

This means One UI 5.1 i the last major update for both phones.

[MhassanS]

A51 ONE ui5.1 update available now