Snap 4 is Apple MagSafe® compatible, nano-adhesive assisted. It takes more deliberate effort to remove than typical MagSafe® accessories because you can use other MagSafe® accessories on top of it and we don't want it coming off! The magnets inside your iPhone just aren't strong enough to keep Snap 4 on your phone if you stick it to a fridge or car mount.

P.S. it's reusable adhesive! Just run water over it, let it air dry, and it reactivates like magic.

Phone Compatibility: Snap 4 is compatible with almost every phone made in the last 15 years. Crazy right?
Charger Compatibility: For best results, use Snap 4 Luxe with a magnetic/MagSafe wireless charger. Pads and stands without magnetic positioning may not work

Snap 4 works with most cases! If your case is flat, it should stick just fine, though it may have issues sticking if your case has a lot of texture. Any case above 2.2mm thick may present issues with wireless charging, but almost all cases are under 2mm. 

Product Dimensions:

Diameter - 58mm

Thickness - 2.5mm