
Sihoo X5 Pro Gaming Chair
SIHOO X5 Pro Gaming Chair Series
Dual 'C' Lumbar • 3‑Zone Backrest • 6D Armrests • Dual Headrest • 95°–138° Recline • 5‑Yr Warranty
Overview
Experience the future of gaming comfort with the SIHOO X5 Pro: switch vibrant backrests, enjoy dynamic armrests that move with you, and customise every detail for peak performance.


Key Features

C-Type Adjustable Lumbar Support
Designed to provide personalised lower‑back support, ensuring comfort over extended sessions.
Reduces fatigue by adapting to your natural lumbar curve and relieving pressure.
3-Zone Elastic Backrest
Divided into upper, middle, and lower ergonomic zones to align with your spine’s natural shape.
Provides targeted support to maintain posture and comfort throughout the day.

Double C-Shaped Wrap Waist Pillow
Offers tailored lumbar support, perfectly matching your lower back’s natural curve.
Helps alleviate spinal pressure and supports healthy posture during long gaming sessions.

Double Joint Headrest
Designed for precise neck support with two‑way movement.
Offers 44° rotation and 7 cm vertical adjustment for perfect neck comfort.

6D Bionic Joint Armrests
Moves in sync with recline, offering height, depth, angle, and rotation adjustments.
Ensures seamless arm support whether you’re gaming or working.

Saddle-Type Pressure Dividing Cushion
Engineered to distribute pressure evenly, reducing fatigue during long sits.
Its contoured shape enhances comfort and encourages healthy circulation.

Recline Range & Footrest
Adjust from 95° to 138° recline and extend the retractable footrest for full-body relaxation.
Transition easily between focused gaming and a comfortable break.

One-Touch Adjustment in 3 Modes
Simplify settings: flick up for 9 cm lift, back for full recline, forward for 4 cm seat slide.
No knobs—just instinctive, fast control.

Ergonomic Design for All Heights
Adjustable headrest, armrests & lumbar support suit users from 150 cm to 190 cm.
Ensures a perfect fit for every body type.

Sturdy Base & Certified Gas Lift
Aluminium alloy base with silent PU wheels supports up to 150 kg.
TÜV/SGS 4‑level gas lift ensures smooth, secure height adjustments.




Headrest | Double joint headrest |
---|---|
Mechanism | Anti‑Gravity Mechanism with aerospace‑grade glass fiber elastic plates |
Mesh material | Polyester Elastic Mesh |
Seat cushion | Saddle‑type pressure dividing seat cushion |
Lumbar support | C‑type adjustable lumbar support |
Armrests | 6D synchronous tilting armrest |
Seat height | 45.5 –54.5 cm |
Seat width | 51 cm |
Seat depth | 40 –47 cm |
Overall height | 109 –127.5 cm |
Warranty
We stand behind the SIHOO X5 Pro with a comprehensive 5‑year warranty on all mechanical components and a 3‑year warranty on the mesh.
What’s Covered:
- Adjustable lumbar mechanism & dynamic support
- 6D synchronous armrests & dual joint headrest
- Chair frame, base & workmanship
If any issue arises, our friendly support team will work with you to resolve it quickly—replacement parts or service, whichever you need.
Delivery
Your order is processed within 1–2 business days. Standard delivery across Australia takes 3–7 business days. Once dispatched, you’ll receive a tracking link to follow your chair’s journey.
For special delivery requests or international shipping, our dedicated team is ready to assist. Each chair is carefully packaged to ensure it arrives in pristine condition.
Installation
- Unpack Carefully: Lay out all parts on a clean surface.
- Insert Casters: Push each wheel firmly into the base sockets.
- Install Gas Lift: Seat the gas piston into the center of the base.
- Attach Seat Plate: Align and screw the metal plate to the bottom of the seat.
- Mount Backrest: Slide the backrest brackets into the seat plate until they click.
- Fix Armrests: Bolt the 6D armrests into place on each side.
- Final Tighten: Ensure all screws are snug—avoid over‑torque.
- Adjust & Enjoy: Test and set your preferred height, recline, lumbar and armrest positions.
Installation typically takes under 10 minutes with the included Allen key—no extra tools required.

UpDown Desk has partnered with SIHOO, a global leader in ergonomic seating solutions.
As a company committed to supporting the health and wellbeing of office workers across Australia, it was essential for UpDown Desk to partner with a brand that shares our vision for high-quality, ergonomic office furniture.
With years of expertise in designing and manufacturing ergonomic chairs, SIHOO has become internationally recognised for combining innovative engineering with user comfort. Their chairs are purpose-built to promote better posture, reduce fatigue, and support productivity in both professional and home office environments.
Just like UpDown Desk, SIHOO places a strong emphasis on functionality and design—ensuring every chair not only looks modern but delivers exceptional comfort and support where it’s needed most. Together, we’re proud to offer a complete ergonomic solution that helps Australians work smarter and healthier every day.
thoughtful design—delivering an exceptional user experience.
As more Australians work from home or in flexible office environments, SIHOO ergonomic chairs are built to adapt—offering durability, comfort, and customisable support for every user. Each SIHOO chair is crafted with the highest standards of ergonomic design, safety, and sustainability, ensuring peace of mind with every purchase.
What sets SIHOO chairs apart:
- Recommended by health professionals to promote optimal posture, dynamic movement, and long-term comfort for better productivity.
- Award-winning design that blends smart technology, premium materials, and modern aesthetics to suit evolving workspaces.
- Trusted quality backed by warranty—with select models offering up to 10 years of coverage and reliable after-sales support, including return-to-base servicing and component replacement.
- Whether you're upgrading your home office or equipping your team, SIHOO helps you work smarter—and sit better.
