"Where Are Ü Now" received critical acclaim.
Billboard Jason Lipshutz included "Where Are Ü Now" in its "Top 10 Songs of 2015 (So Far)" list, stating that "[t]his is the Justin Bieber we've been waiting for: emotive, vulnerable and smart enough to join forces with two of electronic music's most reliable maestros. The combination of Justin Bieber's moving falsetto and Skrillex and Diplo's tangled knot of beats makes 'Where Are U Now' a deserved (and much-needed) triumph." Ryan Dombal of
Pitchfork wrote the track is "unexpected in all the best ways. It tones down everything you know about Skrillex while retaining his knack for dynamics. Diplo puts his own 10-ton-glowstick tendencies aside as the song combines sharp
dancehall stabs and a gloriously sad Eastern melody in a way that recalls golden-age
Timbaland. And Justin Bieber sings with something akin to actual human emotion." Markus Papadatos of Digital Journal called it "
superb", noting that the song "marks one of Justin Bieber's best vocal performances to date: it is soothing, controlled, delicate and most importantly, extremely radio friendly." In her
Entertainment Weekly review, Leah Greenblatt explained that the song is "stripped down for maximum aerodynamics, the vocals mentholated and sweetened with a brushstroke of bass here, a snake-charmer synth line there. For Bianca Gracie of
Idolator, the song "solidified a genre-bending sound that was bubbling underground" and "ultimately became the best single of his career thus far." Sam C. Mac of
Slant Magazine observed that the song "effectively reinvented Bieber's sound," while Andrew Unterberger of
Spin called it "Bieber's cred-establishing and career-redefining." Dan Weiss of the same publication wrote that it "comes outfitted with an addictive bent rainforest flute thing that wouldn't sound out of place on, say,
M.I.A.'s
Kala." Scott Wilson of
Fact called it "the jewel in the crown," describing it as "a combination of slick, modern Disneyfied R&B and a synth riff that sounds like a
PC Music take on
Booka Shade's 'In White Rooms'." He also referred to it as "Bieber's most memorable, and human, vocal performance to date."
Accolades Year-end lists ==Commercial performance==