"Let Me" is an upbeat pop and R&B track featuring "a slick, easygoing production".
Written and recorded at Jungle City Studios and Electric Lady Studios in New York City, the song is based on a simple beat and an electric guitar sample.
Lyrically, the song is about taking care of a partner for the rest of their lives.
The music video was directed by José Padilha.
Hugh McIntyre of Forbes found the song "decidedly sweeter and more restrained than his recent offerings", complimenting its ability to not "rely on big electro beats or any gimmicks to sell itself".