[2] He attended Provo High School, where his team won state titles in his sophomore and junior seasons.

After considering schools such as California, Gonzaga, and Utah, Davies chose to play college basketball at Brigham Young.

[3] After playing a reserve role as a freshman in 2009–10, Davies became a key player for the Cougars as a sophomore.

3 in the AP Poll when Davies was suspended from the team for violating BYU's honor code by having premarital sex with his girlfriend.

[9] He played in his first NBA game on November 2, 2013, against the Chicago Bulls, scoring two points in two minutes of action.

[15] In July 2016, Davies signed with AS Monaco of the French LNB Pro A and the Basketball Champions League.

On May 9, 2019, Davies was named to the All-EuroLeague First Team, becoming the first Žalgiris player to win the award in 15 years since Arvydas Sabonis in 2004.

[19] In his second game with Barcelona, Davies recorded 24 points and 11 rebounds in a 95–87 win over Saski Baskonia.

[20] On June 24, 2022, Davies signed a two-year contract with Italian champions Olimpia Milano of the Lega Basket Serie A, playing also the EuroLeague.