SIHOO M59AS vs HÅG SoFi
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
$1,239.01
lower starting price for SIHOO M59AS than HÅG SoFi at the brand stores
Differences at a glance
Sources
- Sihoo M59AS Ergonomic Chair | Dual-Section Back & Flip-Up Armrests – UK Sihoo official Shop ↗Checked Oct 9, 2026
- HÅG SoFi factsheet ENG (Oct 2019), Flokk ↗Checked Sep 29, 2026
- Sihoo M59AS Ergonomic Office Chair with Dual-Section Backrest – Official US Sihoo Store ↗Checked Oct 9, 2026
- HÅG SoFi Spec Sheet (US, 2026-08-06), Flokk ↗Checked Sep 29, 2026
- HÅG US Price List (Flokk, 8.6.26) (price) ↗Checked Sep 29, 2026
SIHOO M59ASHÅG SoFi
- Price
- $449.99$1,689 – $1,979
- Seat height
- 46.5–56.5 cm395–545 mm (15.6–21.5 in); 450–640 mm (17.7–25.2 in)
- Seat depth
- 17.13 in (≈ 43.5 cm)380–460 mm (15.0–18.1 in)
- Load capacity
- 330 lb (≈ 150 kg)300 lb (136 kg)
- Recline
- Recline up to 126°Tilt range is 20° forwards and 14° backwards from a neutral position 4° to the rear
- Arms
- 3D coordinated flip-up armrests (flip up and down, left and right, forward and backward)HÅG SlideBack™ armrests: adjust height, width or slide backwards; optional extras (aluminium or plastic); arm height 185-300 mm
- Headrest
- Double-jointed headrest (height and angle)Headrest foremost support point 630-835 mm
- Lumbar support
- Dynamic lumbar support in a dual-section backrestAdjustable lumbar support standard; foremost support point 165-260 mm
- Warranty
- 3 years10-year guarantee against production defects (normal use up to 9 hours per day)
Questions
Which is cheaper, the SIHOO M59AS or the HÅG SoFi?
The SIHOO M59AS is cheaper to start: $449.99 versus $1,689 for the HÅG SoFi at the brand stores (Oct 2026).
Which has a higher weight capacity?
The SIHOO M59AS, rated for 330 lb versus 300 lb for the HÅG SoFi.
Which has a headrest?
Both: the SIHOO M59AS as standard and the HÅG SoFi as standard.
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- SIHOO M59AS vs SIHOO M57 Arms: 3D coordinated flip-up armrests on SIHOO M59AS; 3D coordinated armrests on SIHOO M57.
- SIHOO M59AS vs SIHOO B100 Headrest: Double-jointed headrest on SIHOO M59AS; Wide 2D adjustable headrest on SIHOO B100.
- HÅG SoFi vs Herman Miller Aeron Load capacity: 300 lb on HÅG SoFi; 300 / 350 / 400 lb on Herman Miller Aeron.


