Blake Griffin led the Clippers with 19 points and eight rebounds.
The NBA champion Heat will play the Clippers again Sunday in Shanghai.
New addition Ray Allen had 15 points off the bench for Miami, hitting four 3-pointers.
Dwyane Wade played in his first preseason game after surgery on his left knee but shot just 2 for 9, finishing with five points.
Despite its pivotal nature, Game 5 wasn't one LeBron James said he approached full of trepidation; his calm translated to the Cavs' winning effort.
SVP, Stanford Steve and Brendan Haywood, explain how they tried to spice up the fourth quarter of the Cavaliers' blowout victory over the Raptors in Game 5.
NBA commissioner Adam Silver sits down with Cassidy Hubbarth to provide his reaction to the officiating being a big storyline throughout the playoffs.