Yes, it matters a lot. There are different types of chargers available. One important factor to consider while buying a charger is the power supply. If you need fast charging for your iPhone, you have to buy a USB-C charger that provides at least 20W power output. The more power it provides, the faster it will charge your device. This rule applies to all chargers whether it is a car charger, wireless charger, wall charger, or power bank.