Event overview
ROTAI concluded its program at IFA Berlin 2025 after five days of continuous demonstrations at Messe Berlin. The booth in Hall 17, H17-116, was designed for hands-on evaluations rather than stage presentations. The aim was to let visitors experience how the systems behave in real conditions—crowded aisles, background announcements, and constant foot traffic. Across the schedule, the team kept the same structure: quick seating, short orientation, and a focused run that allowed visitors to judge contact, control, and sound level for themselves.
What we showed
The centerpiece was the Bi-Stretch A70MAX Massage Chair, presented as a platform built around precise motion and posture-aware support. The chair runs a scan to map the back, sets its contact points, and then moves through a sequence that balances coverage with control. The signature elements are two-stage zero-gravity positioning and the Bi-Stretch sequence. Together, they support the hips and lumbar area so that deeper cycles feel deliberate rather than abrupt. The focus is on repeatable results—not a one-time “show” setting but a pattern visitors could expect to use at home or in shared spaces.
How the demonstrations worked
Each session began with an automatic body map to establish where the neck base and lower back should be supported. Operators started with a general full-body routine to let the system settle into its path, then shifted to a targeted routine when a visitor asked to address a specific area such as the neck and shoulders or the mid-back. When deeper work was requested, the chair moved into two-stage zero-gravity and then into the Bi-Stretch sequence. This order made it easy to feel unloading through the lower back first, followed by a steadier track along the thoracic region. Calf and foot work typically came last, so observers could judge roller feel and stabilization without the distraction of upper-body movement. The same method ran all day, which helped buyers, engineers, and editors compare notes from different time slots.
Observations from the floor
Most visitors commented first on sound. The Bi-Stretch A70MAX Massage Chair ran quietly enough for normal conversation beside the unit, even when adjacent chairs were active. That acoustic behavior matters because it determines whether a device is viable in living rooms, clinics, and training rooms. The second observation involved control. The on-screen interface was direct; once staff showed the start point, visitors changed intensity and modes without coaching. The third theme was motion quality. Evaluators noted that pressure stayed steady when the rollers crossed edges around the shoulder blades, and that contact felt balanced on both sides of the spine during slower passes. Those patterns were consistent from one session to the next and formed the basis of many technical conversations at the stand.
Why IFA was the right test
IFA's Fitness & Digital Health zone provides a practical setting for comfort and recovery technologies. It is not a lab. It is busy, public, and loud at peak times. A platform that performs in that context usually translates well to daily life. The booth was set up for that reality: open seating, clear entry and exit, and a dedicated area where observers could watch motion paths up close without blocking aisle traffic. Images from the show floor document full chairs throughout the day, with operators maintaining short, structured sessions to keep the queue moving.
The platform in plain language
The Bi-Stretch A70MAX Massage Chair is designed to feel accurate rather than aggressive. The motion system has the range to stay on track across different body shapes; the control loop keeps pressure changes smooth; the frame and shell keep noise low; and the two-stage zero-gravity posture supports the joints so deeper routines are more tolerable. The Bi-Stretch sequence is not about maximum force—it is about the right force applied in the right position so the body accepts it. This is what visitors noticed during uncoached first sessions, and it is the reason many returned later in the day to run the same sequence again.
What this means going forward
From a product standpoint, the show confirmed three priorities. First, people value quiet hardware more than they expect; it is a deciding factor for shared spaces. Second, clear controls reduce reliance on staff and make daily use realistic. Third, posture support is the difference between a strong routine that feels manageable and one that people stop early. The IFA schedule provided enough repeated trials to see those patterns clearly.
Closing note
This report is intended as a permanent public record of ROTAI’s presence at IFA Berlin 2025 and of the live demonstration format used for the Bi-Stretch A70MAX Massage Chair. The purpose is credibility. It captures what was shown, how sessions were run, and what visitors actually noticed—not in a lab, but on a busy show floor.
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Source notes: ROTAI exhibitor listing with Hall 17, H17-116 on the IFA site IFA Innovation For All; IFA 2025 dates and venue confirmations from independent event briefs and tech outlets Indien AHK+2Android Central; A70MAX pre-show feature posts covering wide-angle motion (21–107°), fast feedback (~50 ms), low noise (~44 dB), two-stage zero-gravity, and Bi-Stretch/“dual-core” mechanism