My cheap chinese phone lasted almost a week, over 5 years. I got a new flagship Samsung one, somehow the thing loses around 30% battery every day even if I do n

My cheap chinese phone lasted almost a week, over 5 years. I got a new flagship Samsung one, somehow the thing loses around 30% battery every day even if I do nothing. I think manufacturers need more efficient phones to keep doing whatever the heck they are doing, it's not like the "user" owns these things.