Wired charging is typically faster than wireless, however wireless charging speeds are continuously increasing. Charging speed is measured in Watts (W), and the charging speed you receive will depend on two things: the phone you own, and the charger you buy. Your handset's specs will reveal its maximum wired and wireless charging speed. The Huawei P30 Pro, for example, offers 15W wireless and 40W wired charging. Once you know the specs for your phone, make sure you don't buy a charger that exceeds the limitations.