In the MagSafe charger itself as well as in the case of your iPhone 12, iPhone 13 or iPhone 14 there are two integrated magnetic rings, which are exactly adapted to the technology of your iPhone and thus provide the necessary magnetic hold between charger & iPhone. This prevents your MagSafe Charger from slipping away and interrupting the charging chain. In addition, there are two magnetic strips in your iPhone underneath the ring, which ensure the vertical alignment and hold of the MagSafe accessories used. This magnetic technology is only included in the iPhone 12, 13 and 14 models, but does not affect the wireless charging function, which continues to work via the Qi standard. So while MagSafe magnetic docking is only possible for iPhone 12, 13 or 14, you can still enjoy full charging power with all other models!