The iPhone 12 series has a function (MagSafe) that automatically positions wireless charging by embedding a magnet around the Apple logo on the back. With Qi standard wireless charging, if the coil and charger are not brought close to the proper position, the charging efficiency will decrease, leading to a decrease / fragmentation of the charging speed, so a mechanism like MagSafe has a great advantage for the user.
When that happens, the question that comes to mind is that wireless charging may not be possible unless it is said to be “MagSafe compatible.” You may feel uneasy, such as “Can’t you choose the case freely? Can’t you use the conventional charger?”
But don’t worry. Accessories that are not specified as MagSafe compatible can also be used with the iPhone 12 series. Of course, wireless charging is also possible, but there is an advantage to “MagSafe compatible” for each case / charger.
Since the MagSafe compatible case has a magnet embedded in the same position as the main body, the MagSafe charger can be attracted with the same force as when it is brought directly to the main body. Non-compliant (no magnets embedded) cases reduce the ability to attract the charger, reducing the benefits of ease of alignment and resistance to disengagement.
MagSafe chargers have the advantage of supporting high-speed wireless charging up to 15W, in addition to being easy to align / disengage by magnetic force. Although it cannot be attracted by magnetic force, it can be charged at high speed with a maximum of 15W even on iPhone X or later (models that support wireless charging).
There are many third-party products on the market that claim to be MagSafe compatible, but they do not always have a mechanism that allows them to be easily adsorbed regardless of their orientation. In that sense, it is necessary to re-verify whether it can be truly called MagSafe compatible.