iPhone 12 “fast charge” is the worst
In this test, the iPhone 12 charging is compared to some competitors. In this case, it is OnePlus that delivers charging at 65W and Xiaomi that delivers charging at insane 120W. Not unexpectedly, the iPhone is absolutely the worst here and takes much longer to charge.
Most phones last a day and charge at night, so how long it takes to charge may not matter much to many. However, it is the case that with such a good fast charge, you can stop with the nightly routine of having your mobile connected when you sleep and instead run a little charge for a while now and then, so faster gives more freedom.