HÅG SoFi vs SIHOO M18

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

HÅG / Flokk

HÅG SoFi

$1,689 – $1,979

SIHOO

SIHOO M18

$289.99 – $299.99

$1,399.01

lower starting price for SIHOO M18 than HÅG SoFi at the brand stores

Differences at a glance

HÅG SoFiSIHOO M18

Price: $1,689 – $1,979$289.99 – $299.99
Seat height: 395–545 mm (15.6–21.5 in); 450–640 mm (17.7–25.2 in)44–54 cm
Seat depth: 380–460 mm (15.0–18.1 in)17.91 in (≈ 45.5 cm)
Load capacity: 300 lb (136 kg)330 lb (≈ 150 kg)
Recline: Tilt range is 20° forwards and 14° backwards from a neutral position 4° to the rearMaximum 126° recline angle
Arms: HÅG SlideBack™ armrests: adjust height, width or slide backwards; optional extras (aluminium or plastic); arm height 185-300 mmAdjustable armrests (Up and down)
Headrest: Headrest foremost support point 630-835 mmHeadrest moves 3.9" up and down and pivots 45°
Lumbar support: Adjustable lumbar support standard; foremost support point 165-260 mmLumbar support adjusts vertically and horizontally
Warranty: 10-year guarantee against production defects (normal use up to 9 hours per day)3 years

From 2 HÅG SoFi and 5 SIHOO M18 user reviews, most mentioned first. Green is liked, orange is a caution.

Which is cheaper, the HÅG SoFi or the SIHOO M18?

The SIHOO M18 is cheaper to start: $289.99 versus $1,689 for the HÅG SoFi at the brand stores (Sep 2026).

Which has a higher weight capacity?

The SIHOO M18, rated for 330 lb versus 300 lb for the HÅG SoFi.

Which has a headrest?

Both: the HÅG SoFi as standard and the SIHOO M18 as standard.

What do owners mention most?

Design for the HÅG SoFi, and price and value for the SIHOO M18, based on review summaries.