There are two situations:
1, support wireless charging: iPhone8 series, iPhoneX series, iPhone EXs series, iPhone11 series, iPhone ESE (new version);
2, does not support wireless charging: iPhone7s series, iPhone7 series, iPhone6s series, iPhone6 series, iPhone5s series, iPhone5c series, iPhone5 series, iPhone4s series, iPhone4 series, iPhone3G
support
The iPhone X fully supports wireless charging, and wireless chargers are not expensive. It mainly transmits power to the mobile phone through the wireless magnetic ring. Wireless charging technology article Wireless charging chip