Product Details
A full synchronous task chair built for long working days – Prompt is built around a full synchromatic mechanism with integrated forward tilt, an instant-response tension control wheel with 240° of travel, and a five-position backrest lock. It is specified for office and home-office users who sit for extended periods and want the chair to move with them rather than hold them still.
Adjustment where it matters, without unnecessary complexity – A sliding seat sets seat depth to leg length, the backrest adjusts for height, and seat tilt is included as standard. On the upholstered backs the chair is GS-certified to a 150 kg user weight, placing it well above the typical 110 kg rating of standard office seating.
Key Highlights:
GS-certified to 150 kg user weight on the upholstered backs – independently tested, not a manufacturer estimate
Instant-response tension control wheel (240°) – tune recline resistance to your bodyweight
Five-position backrest lock – more lock points than the four-position mechanisms common at this level
Integrated forward tilt – tips the seat forward for focused desk work
Sliding seat depth adjustment – standard, not an upcharge
Height-adjustable backrest – positions lumbar support to your spine, not the average
Built for people who sit six hours a day or more – Prompt's adjustments are the ones that change posture: seat height, seat depth, backrest height and recline resistance. Cold-moulded polyurethane foam is used on the upholstered seat and backrest, and the upholstery is applied without adhesives.
Pneumatic seat height adjustment: 400–540 mm depending on specification, letting you set feet flat with a neutral knee angle
Sliding seat depth: 70 mm — clears the back of the knee while keeping full thigh support
Height-adjustable backrest: Aligns the lumbar curve of the backrest to your own
Adjustable torsion control: A 240° wheel sets how much resistance the recline offers
Forward tilt: Opens the hip angle for periods of close, concentrated work
Free-flow recline with five-position lock: Move freely, or fix the backrest where you want it
Technical Specifications
| Feature | Specification |
|---|---|
| Maximum user weight | 150 kg — GS certified (upholstered backs) |
| Seat width | 470 mm |
| Mechanism | Full synchromatic with integrated forward tilt, free-flow recline, 5-position backrest lock, 240° tension control wheel |
| Backrest | Height-adjustable. Upholstered in cold-moulded polyurethane foam, or mesh, depending on the build you choose |
| Base & castors | Five-star base with load-controlled twin castors to EN 12529 |
| Certifications | Upholstered backs: GS certificate (150 kg), BIFMA LEVEL 3, Blauer Engel, pollutant tested, ergonomics tested, Quality Office |
| Assembly | Delivered fully assembled |
Dimensions — Standard specification
| Feature | Upholstered — 60 cm | Upholstered — 70 cm | Mesh — 60 cm |
|---|---|---|---|
| Backrest height | 600 mm | 700 mm | 600 mm |
| Seat height | 410–540 mm | 410–540 mm | 400–520 mm |
| Seat depth | 420–490 mm | 420–490 mm | 400–470 mm |
| Base diameter | 690 mm | 690 mm | 680 mm |
| Sliding seat | 70 mm | 70 mm | 70 mm |
| Chair weight | 18 kg | 20 kg | 17 kg |
Delivery, returns & what’s included
- Free tracked UK delivery — typically 4–5 weeks from order.
- Delivered fully assembled — your chair arrives built and ready to use. No assembly, no tools, nothing to book.
- 14-Day Hassle-Free Returns if the chair isn’t the right fit for you (see full policy for details).
- 5-Year manufacturer’s warranty, coordinated directly by Apex with UK-based support.
- The Apex Ergonomics Pack — complimentary with every chair: our 6-page guide to setup, posture and chair care, emailed after your order.
Every Apex Comfort chair includes your complimentary 6-page Apex Ergonomics Pack — emailed automatically once your order is confirmed. A concise, practical guide to setting up and getting the most from your chair, so it delivers the support you paid for from day one.
Inside the pack
- 10-minute desk & chair setup checklist — set height, posture and screen position correctly the first time.
- Visual posture reference — keep it to hand through long working days.
- Movement breaks & desk stretches — reduce stiffness during extended sessions.
- Chair care & maintenance — keep your chair performing and looking its best for years.
Why it matters
Even a well-engineered chair won't help if it's set up incorrectly — you'll carry the same aches into a new chair. This guide covers the small, high-impact adjustments that fix the cause, not the symptom, so your chair delivers the comfort and support it's built for.
How you receive it
Place any order and we'll email your download link as soon as your order is confirmed. Open it on your phone, tablet or laptop and follow the steps as you set up your chair.
The Apex Ergonomics Pack is available only to Apex Comfort customers — not included when the same chairs are bought from general retailers or marketplaces.
The Apex Comfort Standard
Built to a long service life and specified for daily professional use.
Complete the setup
FAQs
Sent via free tracked UK delivery. This chair's own delivery estimate is shown in the Specs & Delivery section above. Read our full Delivery policy.
We offer 14-day hassle-free returns from delivery for change of mind. Damage or defects can be reported within 30 days, and we arrange and cover collection in those cases. Read our full Returns & Refunds policy.
Apex Comfort is a UK office-seating specialist, operated by the registered company ZACK'S ECOMMERCE LTD. We coordinate delivery, returns and your warranty directly. More about Apex Comfort.
