Duke XL 4D

The Duke XL is Osaki's big-and-tall chair, built with a reinforced, wider frame to comfortably fit users up to 400 lb and 6'8" tall. It runs the same core 4D massage and AI health-tracking technology as Osaki's other advanced chairs but scales the seating, armrests, and track length to accommodate larger body types.

• Size-Accommodating Frame: A reinforced steel structure with a wider seat and extended backrest is built specifically to support taller and heavier users comfortably.
• 4D Massage Mechanism: The roller heads adjust speed and depth on the fly, aiming for a massage that feels closer to human hands than a fixed 3D pattern.
• Intelligent Health Detection: An AI-linked sensor checks fatigue, heart rate, blood oxygen, and microcirculation, then factors those readings into program recommendations.
• SL-Flex Track System: An upgraded SL-track keeps a fixed angle relative to the backrest for better body-hugging coverage from the neck down to the upper glutes.
• Deep Calf Massage: Fourteen air cells plus four physical calf bumpers combine to knead and compress the lower legs.
• 48-Cell Air Compression: Airbags spread across the chair provide targeted squeeze-and-release compression to ease tension throughout the body.
• Heating Shawl Therapy: Warmth is delivered to the lumbar area and feet, with an optional shawl attachment that can also warm the chest and abdomen.
• Touchscreen Controller with LED Accents: An intuitive touchscreen remote handles settings, complemented by ambient LED lighting for a more relaxing atmosphere.