No, it's reserved for S series

A55 is good for day to day or any kind of professional/office use. A55 is way better than M56 choose a55. A55 is not made for heavy use. Maybe A55 comes with android 16 out of the box. But update policy is start from android 14 + 4 update

If you’re phone warranty is done then done update samsung android OS, because and android support apps for more 8 year. So after warranty OS update is risky and also company slow down the device through update(as we know)

Regular, like normal, now I am draining it till 0%, because after update I do this process