It's not a frosted feel. This is because the Samsung s 9 uses a wireless charging version. There is a wireless charging connector on the back of the mobile phone, because the frosted conductivity is not good, it will greatly reduce the charging efficiency, so in the middle of the night the back of the mobile phone does not use the frosted design, but the glass design glass is made of tempered glass, which can make the wave penetration more agile and durable, and will not easily leave scratches and fingerprints. So it's not a matte feel.