Walcott loves to watch the Spaniards in action but he believes they could be susceptible to the speed of England's attackers.
"I haven't really seen their defence attacked with so much pace and at this moment in time the England team has so much pace," Walcott told Arsenal Player. "Hopefully we can upset them with that.
"We know Spain will have a lot of the ball, we expect that from the top teams, so we need to be calm and patient and make sure there are no gaps in our team.
"The way they play football is beautiful to watch. They just seem to blow teams away, they are classy, they look great on the ball. And it's not just about the way they play, they carry themselves very professionally off the pitch and that's very important.
"Going into tournaments they are not fazed by any team, they believe they can beat anyone and that's the stage England want to get to."