The album earned two consecutive number-one singles on the Philippine charts, the first being "Jealous", which peaked at number one for three weeks, and was succeeded by her own rendition of "Foolish Heart".

[2] Smile failed to match the commercial success of its predecessor, but it maintained her status as a platinum-selling artist.

Also in 2009, Nina was named as the best-selling female recording artist by the Guillermo Mendoza Memorial Scholarship Foundation.

[8] In October 2010, Warner released a 4-disc box set compilation of Nina's singles, entitled Diamond: Greatest Hits 2002-2010.

[9] Despite not having released new material since 2013, she was ranked at number 8 and 5 on Spotify's most-streamed female OPM artists of 2018 and 2020, respectively, with an average of 963,468 monthly listeners.