Chris Martins of "Spin" magazine commented that "It's exactly what you'd expect to hear, and it's exactly as beautiful as you'd hope it would be." Selling 16,032 digital downloads, "I Miss You" opened at number 34 on the South Korea Gaon International Singles Chart for the week ending July 2, 2011. Following the release of "4", "I Miss You" also charted at number 184 on the UK Singles Chart on July 9, 2011, based on downloads alone.