Factual error: When Xander Cage is chasing Xiang on the dirt bikes, he lets his bike get entirely submerged, which would flood the engine.
Continuity mistake: When we see Serena for the 1st time leaning against the column she is wearing high heeled black boots. Later when she is on the beach after Xander took Pandora's Box, she is wearing low square heeled boots.
Continuity mistake: Just before Ruby Rose spins down from her sniper shot, it's still night time. As she comes down it's suddenly much brighter, and very seconds later as the chase continues, it's broad daylight.
Visible crew/equipment: During Gibbons' funeral, when the camera pans up to eventually catch Vin Diesel sitting in the gallery, a few extras (such as the woman two rows behind the one with the flaming red hair) look up following the movement of the crane. (01:36:10)
Continuity mistake: When the gang bids a silent farewell to Xander, look at Nicks in his close-up; in the background, Tennyson Torch is turning around towards his right, but in his own close-up, Tennyson turns towards his left, and Becky is close to him while she was nowhere in sight before. (01:33:10)
Revealing mistake: When Ice Cube shoots the grenade at the car, the explosion comes from inside the car, but the car itself is raised in the air before the explosion happens. (01:28:05)
Continuity mistake: After Tennyson's 200th crash selfie, we see Xiang chased by Xander. When Xiang tumbles in the alley, on top of a dumpster there's a carton half filled with green and white bottles. When he kicks it in Xander's face, the carton is filled with just green bottles. (01:10:00)
Revealing mistake: When Xander Cage chases on foot Xiang in the Detroit underpass, he leaps over an incoming car, then on top of the hood of another. The hood is already dented from previous takes. (01:08:25)
Continuity mistake: When Deepika Padukone goes "Ahhhhh! Nooo!" blinded by the sun on Vin Diesel's nipple, Diesel's hand is holding the sweater in the first shot, but it's already down in the next one. (01:04:00)
Continuity mistake: In Detroit, Serena tells Xander the story of how she was enrolled in the XXX program. She just mentioned Gibbons' quote about the lion. The wind rustles strong through Deepika Padukone's large mane in a reaction shot on a probably very envious Vin Diesel, but in the next shot her hair is suddenly still again. (01:03:35)
Continuity mistake: In the sequence when Adele Wolff disentangles herself from the makeshift harness she suspended herself in, the stunt double who spins around has much less fabric taped around her thighs compared to Ruby Rose's getup, and when it's Ruby Rose again shooting baddies close to the ground her richer double thigh draping is back. (00:54:50)
Continuity mistake: After the triple triple-X reveal, Xiang says "And I'll be damned if I am gonna let you take it back to the NSA", with both hands on the grenade. Reverse shot, and it's just his left hand. (00:50:00)
Continuity mistake: When Xiang tosses both granades back at Serena Unger and Xander Cage, Serena in the first shot holds the glass with her free left hand, in the second the same hand is flat on the table. (00:48:55)
Continuity mistake: When Donnie Yen says his line about bleeding so much you only see red, Vin Diesel initially listens with his hand on his chin, but it's gone at the cut. (00:48:40)
Continuity mistake: When Serena says about the Pandora's Box "Power like that doesn't belong in anyone's hands" Donnie Yen has his right hand at his temple, but immediately after he has both hands under his chin, then his temple again. (00:47:40)
Continuity mistake: At the beginning of the drinking game, Xander throws the liquor above his shoulder. Xiang then brings out the Pandora's Box; his left arm is flat on the table in the first shot, angled up in the second. (00:47:20)
Continuity mistake: During their first meeting, Xander and Serena hold each other at gunpoint; in fact after a quick switch, they get to a point when Xander has her gun at her head and she has his switchblade at his throat. The blade keeps changing position/angle between shots. (00:46:00)
Continuity mistake: XXX is bargaining with the guy at the docks of the hideout in the Caramoan Islands. The guy says "30% off the top" and pulls a lollipop out of his mouth. He is not putting it back even in the following reverse shot when Vin Diesel laughs at him, but there he is after that, with the lolli again in his mouth. Similarly, when Diesel says "Aaaall right, 22 and a half" the guy has his lollipop between the lips, but it's gone in the next shot. (00:39:55)
Continuity mistake: Cage and his group dock at the island in the Philippines and he begins to talk with the guy who asks him what do they want. He begins; "I heard this is a perfect place..." and a girl walks across, leans against the table with the others and puts her drink down. Next shot, the girl is drinking from the same glass she just put down. (00:39:25)
Revealing mistake: The DJ dude is trying on the super gloves, but loses control and punches a hole in a hatch. Before the shot changes and we get to a close-up of the hole in the metal, you can see Kris Wu pull his arm back and the not-so-metallic parts of the door being pulled back, caught in the denim of his jacket like carton or foil. (00:38:00)