I read the back of the box and I understand that it says something else: That it must be a compatible case, meaning you should not use a metal case. And that the automatic magnetic placement works from the Samsung S25 and above and that you need a 45-watt charger.
The Samsung Galaxy S26 Ultra is expected to launch with numerous magnetic accessories. A leak has already revealed Samsung's official Qi2 charger, which can charge smartphones at up to 25 watts, but the description suggests a limitation when used with Galaxy smartphones.