November 13, 2026 · 2 min read
2D, 3D, 4D or 5D massage: what is the difference and which to choose
We explain in plain words what these letters and numbers mean in massage chair descriptions.
Author: Mykhailo Rybin
Short answer.
- 5D — Imperio (UAH 728,000): adaptive robot with a massage-force sensor.
- 4D — Sentio Max (UAH 408,636, upper 4D and lower 3D), Livaro (UAH 197,080), Miore (UAH 165,880).
- 3D + 2D — A70Max (UAH 339,000): two robots for the upper and lower body.
2D: basic movement
The rollers move up and down and side to side along your back. Pressure depends on how you sit. It suits light everyday relaxation. In the SIDORA range a 2D robot works alongside a 3D one in the A70Max, covering the lower back and glutes.
3D: adjustable depth
A forward-and-back movement is added, so rollers can touch more gently or press deeper. You choose the depth. The upper 3D SmartSync 2.0 robot in the A70Max and the lower 3D mechanism in the Sentio Max work this way.
4D: speed and rhythm
A 4D mechanism also changes speed and rhythm, so the massage feels more natural, closer to a therapist’s hands. 4D is found in Livaro (6 intensity levels), Miore and the upper SmartSync robot of Sentio Max.
5D: adaptive massage
In SIDORA Imperio the adaptive 5D robot adjusts pressure itself using a pressure sensor, while 27 sensors scan the body to within 1 mm. Massage width grows to 233 mm, and the flexible 638-LiFlex track guides the rollers from neck to glutes.
What matters besides the numbers
- Track. A long flexible track massages the whole back.
- Body scan. The chair finds your shoulders and positions the rollers.
- Compression. Airbags massage arms, calves and feet.
- Heat. Warmth helps the muscles relax.
How to choose
For maximum technology choose Imperio. If you love stretching, choose Sentio Max or A70Max. For everyday 4D massage at a lower price, Livaro or Miore. Best of all, compare the mechanisms on a test drive at our Kyiv showroom. More tips in how to choose a massage chair.
Frequently asked questions
Is the difference between 3D and 4D noticeable?
Yes. 3D adjusts pressure depth, while 4D also changes speed and rhythm, so it feels more natural. Compare them on a test drive.
Which SIDORA chair has a 5D mechanism?
The flagship SIDORA Imperio: an adaptive 5D robot, a massage-force sensor and 27 sensors.
Where can I buy a chair with 4D massage?
On this website or at our Kyiv showroom (8 Volodymyra Ivasiuka Ave, building 5). Livaro, Miore and Sentio Max have 4D.
