Agreed. The iphone12 can use Huawei 30w charger. As long as the charging protocol knowledge can be used normally. Two kinds of AMOLED. LCD screen cost is relatively low, mature technology, AMOLED color is more bright, high contrast, black is very pure, more power saving, but also convenient to do hole screen, fingerprint under the screen, curved screen, so now most mobile phones use AMOLED screen.