X-Chair X1 vs SIHOO M59AS

Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.

X-Chair

X-Chair X1

$729

SIHOO

SIHOO M59AS

$449.99

$279.01

lower starting price for SIHOO M59AS than X-Chair X1 at the brand stores

Differences at a glance

X-Chair X1SIHOO M59AS

Price: $729$449.99
Seat height: 15.56–19.75 in46.5–56.5 cm
Seat depth: 16–18 in17.13 in (≈ 43.5 cm)
Load capacity: 275 lb (125 kg)330 lb (≈ 150 kg)
Recline: Extensive Variable Recline allows you to recline and lock into position. Recline tension can be adjusted using one tension-resistant control.Recline up to 126°
Arms: 4-Dimensional armrests come standard (up, down, side-to-side, front-to-back); option to upgrade to FS 360 rotational armrests; Armrest Height 7.125in - 10.625in3D coordinated flip-up armrests (flip up and down, left and right, forward and backward)
Headrest: Optional add-on (standard configuration: No headrest; Headrest +$60)Double-jointed headrest (height and angle)
Lumbar support: Dynamic Variable Lumbar (DVL)® Support; height adjustable backrest raises the DVL®Dynamic lumbar support in a dual-section backrest
Warranty: 5 years (all parts and materials); 15 years (non-moving metal components, chair frame)3 years

Which is cheaper, the X-Chair X1 or the SIHOO M59AS?

The SIHOO M59AS is cheaper to start: $449.99 versus $729 for the X-Chair X1 at the brand stores (Sep 2026).

Which has a higher weight capacity?

The SIHOO M59AS, rated for 330 lb versus 275 lb for the X-Chair X1.

Which has a headrest?

Both: the X-Chair X1 as an option and the SIHOO M59AS as standard.