What’s the difference between 2D, 3D and 4D massage technologies?

This is a very common question.  Here is an easy explanation of the differences between 2D, 3D, and 4D massage chairs:

• 2D – the rollers move up and down, and side to side.  2D is the most basic technology
• 3D – the rollers move up and down, in and out (forwards/backwards)
• 4D – everything with 3D, plus the rollers can adjust/vary their speed.  4D is the ultimate in massage chair technology

Our friends at Osaki Chair were kind enough to explain the main differences between these 3 massage technologies in the video below: