4D Full-Body Massage Chair Zero Gravity Recliner — 55"" S+L Track, 20 Auto Modes, 11 Techniques, 40 Airbags, Yoga Stretch, App Control, Negative Oxygen Ions (Grey)

55"" S+L Track with ergonomic hyperbolic rails designed to fit neck, shoulders, back, waist, hips and legs; a dual V-massage robot brings the rollers nearer for more penetrating, full-body massage. Multiple techniques and modes: combines gentle rubbing, stretching and tapping across 10 modes and 11 techniques to replicate varied massage motions. Comprehensive airbag therapy: 40 airbag nodes across the body with three intensity levels compressing shoulders, arms, feet and buttocks to relieve tension. Tailored leg and foot treatments: the calf module is height-adjustable for a personalized fit, with lower leg friction plus air-pressure massage to combat leg soreness and joint fatigue; three groups of foot rollers boost circulation to the toes. Smart customization: AI body scanning personalizes the routine, DIY memory stores your preferred settings, and an extensive range of automatic programs covers many user preferences. Zero-gravity and yoga stretch positions at 135° and 118° redistribute weight, elevate thighs above the heart and reduce spinal load for deeper relief. App control and negative oxygen ion output enhance usability and air quality. Backed by HealthRelife’s 3-year warranty and 100% tested shipping, with responsive customer support.