You can charge your Samsung smartphone with a Samsung Galaxy S7, S6, or S5 charger. All these Samsung smartphones have a micro USB port. You can charge them extra fast with a Quick Charge or Samsung Adaptive Fast Charging charger. With a Samsung S7 fast charger, it takes only 30 minutes to charge an empty battery for 50%. Without fast charger, this takes about 45 minutes. Choose a Samsung charger with cable if you don't have a micro USB cable, or if you like to have a spare. Do your plastic cables break often? Try a sturdy nylon cable.