What kind of cell phone is Kang Hye Na using in Miss Please?

SCH-W830, this cell phone is the sister model of SPH-W8300 and SPH-W8350. It has a white, simple shell set with a bright blue frame. And it has a gorgeous window - a simple, beautiful, low-pixel flashing external screen. In addition, the unique spring-loaded closure mechanism makes the phone feel more comfortable to open and close. The phone is currently available in Korea.