FLEXISPOT OC4 Ergonomic Office Chair with Adjustable Lumbar Support

The FLEXISPOT OC4 is an ergonomic office chair with adjustable lumbar support, a reclining backrest and an extendable footrest. Its headrest and linked armrests are also described as adjustable or moving with the backrest, making it geared towards desk work with the option to recline for a break.

At a glance

Lumbar support is described as adjustable horizontally and vertically, and foldable.
The headrest has height adjustment, two joints, rotation up to 120° and tilt up to 90°.
The backrest tilts up to 135° and the listing specifies three reclining positions.
Linked armrests move with the backrest, while an extendable footrest supports reclining.

Price

£141.46Save 26%

Reference price: ~~£189.99~~

Price checked: 14 Nov 2026

View offer Ahead of Black FridayExplore the selection

Pros and cons

Pros

The combination of adjustable lumbar support and a configurable headrest offers several ways to tailor the chair's contact points.
A reclining backrest and extendable footrest provide a sitting-to-resting option beyond upright desk use.
Customer feedback reports positive experiences with comfort, appearance, size and assembly.

Technical specifications

15 specifications

Identity
Brand	FLEXISPOT
Model	OC4

Dimensions and installation
Form factor	Task Chair
Dimensions listed	65 x 50 x 118 centimetres
Assembly	Assembly required. Instructions provided.

Materials and design
Material listed	Polyester
Frame material	Metal
Colour	Grey
Back style	Continuous Back
Shape	X-shaped

Adjustments and features
Backrest tilt	135°
Reclining positions	3
Headrest	Height adjustable, has two joints, allows rotation of up to 120° and can be tilted at an angle up to 90°
Armrests	Linked
Footrest	Extendable

What to know before buying

Listing details to confirm

The listing gives two different overall size descriptions: 65 x 50 x 118 centimetres and 60D×54W×(118-133)H CM. Confirm the dimensions and height range for the specific listing before checking desk clearance or fit. Assembly is required. Follow the instructions carefully to avoid injury. The manufacturer's listing describes up to 135° of backrest tilt and three reclining positions, while customer feedback is mixed on functionality and stability. One reported concern was a sitting angle that encouraged leaning forward, so consider whether the chair's seating position suits you.

What’s in the box

Included

Office chair

Who is it for?

A good fit for

Home-office and study users seeking a chair with adjustable lumbar support, a headrest and linked armrests.
People who want an extendable footrest and recline for short breaks as well as desk work.

Less suited to

Buyers who need confirmed overall dimensions or a clearly stated seat-height range without checking the selected listing.
Shoppers who prioritise consistently positive reports of functionality and stability.

FLEXISPOT OC4 Ergonomic Office Chair with Adjustable Lumbar Support · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.1 / 5 · 69 ratings

5 stars58%58%
4 stars22%22%
3 stars7%7%
2 stars2%2%
1 star11%11%

Customer feedback reports positive impressions of comfort, appearance, size and ease of assembly. Experiences with functionality and stability are mixed, including a report of a seating angle that made the user lean forward. This matters for a chair advertised with reclining positions and adjustment features, so the reported comfort should not be taken as assurance that its posture or operation will suit every user.

Positive themes

Customers report comfort and appreciate the chair's appearance and size.
Some customers describe assembly as easy.

Mixed feedback

Feedback on functionality is mixed, with some customers saying it works well and others finding it unusable.
Stability feedback is mixed, including a report that the sitting angle encouraged leaning forward.

Frequently asked questions

How does the OC4 lumbar support adjust?

The listing says it can be adjusted horizontally and vertically and folded. It does not specify adjustment ranges.

What headrest adjustments are listed?

The headrest is described as height adjustable, with two joints, rotation up to 120° and tilt up to 90°.

How far does the backrest recline?

The listing claims a maximum tilt of 135° and specifies three reclining positions.

Does the chair require assembly?

Yes. Assembly is required and instructions are provided. The listing advises following them carefully to avoid injury.

Are the listed chair dimensions consistent?

No. One listing entry gives 65 x 50 x 118 centimetres, while another gives 60D×54W×(118-133)H CM. Check the selected listing for the dimensions that apply.