Hello qosmani, unfortunately I have to correct the answer from Galaxus. Unfortunately, this is not correct. Of course the finger scanner works with our SmartGlass. The Smart Glass is an armoured glass film. A film with a layer of glass on top. The glass layer gives the glass a 9H hardness. It is unbreakable, scratch and impact resistant and shatterproof. The fingerprint works perfectly. If it really does not work, please follow the instructions below: 1. relearn the fingerprint because the coating of the armour film is different. 2. on Samsung smartphones, please always activate the touch sensitivity in the settings. Then everything works 100%. I myself have Smart Glass on my private mobile. I am delighted and have no problems with fingerprints. Where the fingerprint doesn't work is with privacy glasses. The fingerprint is not recognisable through the privacy glass and does not react. But this is also the case with all other manufacturers. However, this is always stated in the article online. From now on with the S24 Ultra it is possible that the fingerprint scanner also works with our privacy glass. Otherwise, the fingerprint scanner works with all our glasses and films. If there are any problems, please try the steps above. I hope you now have a better picture of our products. Your smartphone is simply. better. protected with DISPLEX. Kind regards, Your DISPLEX Team.