1 This screen protector is not tempered glass, but it is better than the tempered glass screen protector, this protector will not break and also can protect screen from scratch.
2 Compatible Model: Perfectly compatible for Samsung Galaxy 4 44mm 40mm, flexible smooth screen protector,hard surface like glass, easy to install, no bubble.
3Sensitive Touch]: Full upgrade adhesive on the screen protector(not only edges) perfectly suit for the watch screen, touch sensitively and not fall off.
4High Transparency]: Good light transmittance special material helps blocking out fingerprints, bubbles, dust and oil, makes your screen looks just like the new.