The PCBuilder Navigator X sits above the Navigator Lite as PCBuilder's higher-spec gaming chair, aimed at gamers who spend long hours at the desk and want more adjustment range and a higher weight rating. It's finished in scratch-resistant PU leather with a honeycomb stitch pattern over a cold-moulded foam seat, mounted on a wider 350mm metal base for extra stability. A Class 4 gas lift and steel frame support a 150kg weight capacity, well above the Navigator Lite's 120kg rating, and the backrest reclines through a wider 90-160° range. The signature feature is the 4D adjustable armrests, which move up and down, side to side, rotate, and slide forward and back — a genuine step up from the Lite's simpler 2D armrests. Large 60mm reinforced castor wheels roll easily across office flooring and carpet alike. The chair ships with a magnetic velvet neck pillow and a velvet lumbar support cushion for added comfort on long gaming or work sessions, plus assembly hardware and a manual. Assembled dimensions run roughly 66 x 73 x 126.5-133.5cm, it weighs about 20.7kg, and PCBuilder covers it with a 12-month warranty.