It's not recommended to attach the MagEZ Grip to phones without a MagSafe case.

No. Although the MagEZ Grip has strong magnets, it still has the risk of falling off the phone case,      particularly when you hold the ring alone, adding pulling force.

The MagEZ Grip might leave a mark ring on the phone case after a certain time because magnets sometimes attract magnetic dust. You can wipe it off using a non-woven cloth and 75% alcohol.

Please check https://www.ipitaka.com/pages/pitalink-guide

Yes. When using Samsung S23, S24,S25 and S26 series phones, if you put on a phone case and then attach magnetic accessories like MagEZ Grip, Magnetic Power Bank, or MagEZ Card Sleeve, the strong magnetic fields of these accessories will interfere with the normal operation of the Spen.

The MagEZ Grip is compatible with all PITAKA cases for iPhone, Galaxy Z series, Galaxy S series, and Google Pixel series. This includes the Edge Case, Summa Case, and PinButton Case.