Kim has appeared on many commercials in South Korea. She sings in some commercials. Her commercial for a new touchscreen haptic phone from Samsung Electronics, dubbed as "Yuna's Haptic" (SPH-W7700), was done in South Korea on May 24, 2009. In the commercial, she plays a rock singer, a teenager, and a writer to show off various features of the phone. Samsung Electronics has sold over one million devices in a record seven months.