This is a comparison between the cut broadcast on American TV networks (e. g. Cartoon Network or USwpix) and the uncut Japanese Version.

While other countries have not yet aired Dragonball Kai, the series was already broadcasted a few times in the USA.
In comparison to Dragonball Z you can immediately see that Dragonball Kai was obviously toned down in a few scenes:

Dragonball Z	Dragonball Kai

Additionally, many violent sequences were not even altered for Dragonball Kai, but cut out in the first place. Thus, you will hardly see any close-up shots of Tenchinhan after Nappa cut half of his left arm off. Also, you do not see Freezer's beam going through Vegeta's chest. Even the well known sequence in which Freezer massacres Kuririn is much more harmless than in Dragonball Z.


Getting ready for US-TV:
The series was censored in order to be bradcasted on US TV. The censoring reminds one of Naruto's US Version. Sometimes there are cuts which are very noticeable due to a crack in the music, while at other times they used a few tricks, e.g. by retouching things or using alternative material. Sometimes they even altered or postponed soundtracks or sound effects in order to make the cuts less noticeable.


The overall difference in time amounts to 32 seconds.
(The rest of the difference in time results from differently long intros.)

2:23
Retouched blood.
no difference

Uncut	Cut

2:34
The blood looks black/grey now.
no difference

Uncut	Cut

2:41
Retouched blood.
no difference

Uncut	Cut

2:42
Ditto.
no difference



2:47
Ditto.
no difference



3:00
Ditto.
no difference



3:09
Retouched scratches in Goku's face (hard to recognize).
no difference

Uncut	Cut

3:16
Ditto.
no difference



3:23
Black/grey blood.
no difference

Uncut	Cut

3:28
Ditto.
no difference



3:35
Retouched blood.
no difference

Uncut	Cut

10:12
Kuririn asks Bulma if she was pregnant and she says no.
4 sec

11:15
The woman on the magazine has been removed.
no difference

Uncut	Cut

13:07
Goku intends to smack Chi-Chi's shoulder but he is too strong. As a result, he pushes her through the wall, then through a tree until she finally hits a rock. Goku and Gohan patch her up.
24 sec

14:24
When Son-Goku kicks Son-Gohan during training, Gohan spits blood.
0.5 sec

14:28
Piccolo hits Gohan in the face during the training. The US Version is back in the game when Gohan is falling backwards.
0.5 sec

16:29
Off-screen explosion.
3 sec

16:48 bis 19:15
Every single shot of Vegeta has been altered. The blood looks black/grey.
no difference

Uncut	Cut

19:21
Muten-Roshi reading his magazine.
2 sec

19:25
Missing women in the magazine again.
no difference

Uncut	Cut

20:07
Retouched blood.
no difference

Uncut	Cut