Change ringtone for messages

[reem zedek]

How I can change the default ringtone for messages??

 

[AV2RY]

Settings / ringtones + sounds - manage app sounds/ -messaging

 

[reem zedek]

I know that. But the vibration is different.. It's do 2 vibrations instead 1 vibration like the others sounds' applications.. How I can change the default ringtone?