Yes, the gallium nitride charger is capable of charging Samsung mobile phones. At present, the mainstream mobile phone fast charge protocol on the market is the standard USB PD fast charge protocol, theoretically speaking, as long as the mobile phone that supports the fast charge protocol can use USB PD fast charge electrical charging, Samsung mobile phone fast charge protocol is also PD fast charge protocol, and millet 55 watt gallium nitride charger is the charger of PD fast charge protocol, so millet 55w gallium nitride