2D, 3D or 4D massage: what’s the difference?

When comparing massage chairs you will almost always see 2D, 3D or 4D. These labels describe how the massage rollers move — and therefore how closely the massage resembles a real therapist.

2D: simple and straightforward

In a 2D mechanism the rollers move in two planes: up and down the back and side to side. Pressure depends on how you sit in the chair. It’s a good choice for light everyday relaxation. A modern example is Smartrelax: its intelligent 2D mechanism runs from the neck to the seat, and the body scan finds your shoulders precisely.

3D: with depth control

A 3D mechanism adds a third direction — the rollers push forward or retract. You can choose a gentle surface massage or work deeper into tense muscles. 3D is the most popular choice for home use. You’ll find it in Ecosonic 3D, AlphaSonic III and SkyLiner II.

4D: with rhythm and speed

4D is 3D plus changes in roller speed and rhythm. The mechanism can slow down on a tight spot and then speed up, just as a therapist would. The massage feels less mechanical and more natural. 4D is available in Skyliner III and Harmony, which also has two independent massage robots.

Which to choose

• Simple everyday relaxation without complicated settings — 2D.
• Depth and adjustable intensity — 3D.
• The most natural massage and the richest sensations — 4D.

Remember that the letters are only part of the picture. The experience also depends on body scanning, heating and leg massage. The best way to compare is in person: in a Casada showroom you can try 2D, 3D and 4D chairs one after another. Browse all models in massage chairs.

Massage equipment is not a medical device. If you have a health condition, consult your doctor before use.