Excerpt from: “Guide to Wireless Charging”
Wireless Charging Pad
Weather your receiver is built into your phone or a receiver pad plugged into the lightning port you will need a wireless charging pad. This pad sends power to the receiver in or connected to your phone. If your phone supports fast wireless charging check to make sure that your pad does to. When purchasing a wireless charger make sure that it uses the same standards as the receiver in or the receiver pad plugged into your phone. If you don’t know which standard your receiver uses contact the manufacturer of your phone to make sure you buy the right wireless charger. In my opinion rectangular wireless chargers like the Morphie Charge Force Wireless Charger or the Pleson wireless charger are easier to use because their rectangular shape align with the rectangular design of your phone.