Stan Most likely, this means Xiaomi intends to somehow make sure that software updates do not visibly hurt performance. Since this is a highly questionable claim - after all, Google makes Android feature updates, not Xiaomi, or Samsung, or anybody else - we ended up removing this sentence.

There are other factors involved, too, like battery health, as pointed out by a team member during a brief internal discussion.

What do you mean by "standard version with a 48-month lag-free performance"? Will the phone be deliberately throttled by manufacturer after 48 monthes?