LiberNovo Omni Dynamic Ergonomic Chair

The LiberNovo Omni is the model in the range that gives you the motorised backrest. A 50 mm powered actuator drives the lumbar support in and out under a button on the armrest, so you change how firmly the chair holds your lower back without standing up or reaching behind you. The same motor runs OmniStretch, a five-minute cycle that walks the lumbar slowly through its full travel to move your lower back while you stay seated. That motor is the single thing that separates the Omni from the cheaper Omni SE, which does the same job with a manual screw dial and has no motor at all.

It is also the most flexible model to specify. Four colours — Starship Grey, Midnight Black, Space Grey and Moss Green — against the SE's one, and, on most colours, a choice of chair-only or chair plus the independent two-stage StepSync footrest. If you want the powered lumbar and the stretch cycle but do not need the Pro's ventilated seat or Danish Gabriel upholstery, the standard Omni is the one to buy.

• Motorised All-In-Fit lumbar — 50 mm of powered travel, driven from the armrest control
• OmniStretch — a five-minute powered cycle through the full lumbar range
• Bionic FlexFit backrest — eight linked flexible panels that articulate as you shift, rather than one rigid shell
• Four locking recline positions, 105° to 160° — Deep Focus (105°), Solo-Work (120°), Soft Recline (135°), Spine Flow (160°)
• 2,200 mAh 12 V battery, USB-C, about 3 hours 40 minutes to charge; one stretch cycle a day runs roughly 30 days between charges
• 4D armrests (height, depth, angle, width) and a height- and depth-adjustable headrest in hydrophilic memory foam
• 48 cm extended seat — 3 cm deeper than LiberNovo's 45 cm standard seat, and supplied with the full-size neck support. LiberNovo rates the chair to 136 kg (BIFMA; 110 kg under EN 1335)
• Chair weight about 21.8 kg; seat height roughly 44–55 cm; zoned multi-density foam seat

Two things worth knowing before you commit. The armrests move easily — helpful when you are setting them, mildly irritating when you knock them out of position and have to reset them. And the backrest spine projects roughly 20 cm behind the chair, so check your clearance if it backs onto a wall or a walkway. Assembly takes longer than an ordinary office chair. The Australian stock is the 48 cm extended seat only, so if seat depth matters to you, sit in one before ordering.

Aussie Chair is an official authorised LiberNovo dealer for Australia and New Zealand, so every Omni carries LiberNovo's manufacturer warranty: five years on the frame, two years on the motor and electronics.Try it at our Sydney (South Granville) or Melbourne (Nunawading) showroom.