[4] He is the nephew of former Everton player Alan Whittle, who made 74 appearances for the club between 1967 and 1972, and his older brother, Liam, is a semi-professional footballer who plays for Bala Town.

His form was rewarded when he was handed his Premier League debut by Roberto Martínez on 16 April 2016, coming on as an 83rd-minute substitute for Darron Gibson in a 1–1 draw with Southampton at Goodison Park.

[9] On the final day of the Premier League season, following the dismissal of Martínez, Davies was handed his first start for Everton by interim manager David Unsworth in a 3–0 win over Norwich City.

[8] Having previously featured on occasion from the substitutes' bench, Davies made his first start of the 2016–17 Premier League campaign on 2 January 2017 and registered his first assist for Everton in a 3–0 win over Southampton.

[14] The following season, during the early stages of the campaign under manager Ronald Koeman, Everton lost six of their opening twelve matches during which Davies was predominantly used as an option from the bench and struggled to find form.

[18] Later that year, he was one of 20 players nominated for the Golden Boy award, but ultimately struggled during the campaign after failing to define his role in Silva's squad, making just 16 league appearances for the season.