The 21-year-old has been in impressive form for Leverkusen during the 2019-20 campaign, scoring 16 times and contributing nine assists in 42 appearances in all competitions.
According to Wendell, who operates alongside Havertz for Leverkusen, the youngster "dreams" of playing in England's top flight.
"He's a complete player," Wendell told Yellow and Green Football. "If you play him as a number nine or as a number 10 a little bit behind, or if you put him out wide, he'll know what to do.
"He has a facility to understand what the manager wants. He finishes well with both feet. He's strong with his head, he has good technique. Psychologically, the Germans are very focused people, too. They are very concentrated on what they want.
"If he goes to the Premier League, he will learn a lot. I think Kai dreams of playing there. He has that desire. If he decides to play in England, he will be a success."