HBADA E3 Ultra vs SIHOO M18

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

HBADA

HBADA E3 Ultra

$809

SIHOO

SIHOO M18

$289.99 – $299.99

$519.01

lower starting price for SIHOO M18 than HBADA E3 Ultra at the brand stores

Differences at a glance

HBADA E3 UltraSIHOO M18

Price: $809$289.99 – $299.99
Seat depth: 1.97" seat-depth adjustment (HBADA does not publish the seat-depth range)17.91 in (≈ 45.5 cm)
Load capacity: 330 lb330 lb (≈ 150 kg)
Recline: Reclines up to 140° with multiple locking positionsMaximum 126° recline angle
Arms: 720° Omni-Mechanical Armrests: 360° pad rotation and body swivelAdjustable armrests (Up and down)
Headrest: 4D Biaxial Adjustable Headrest: frame rotation 70°, tilt and rotation 70°, up/down 1.8", forward/backward 2.2"Headrest moves 3.9" up and down and pivots 45°
Lumbar support: 3-Zone Elastic Lumbar Support: wings rotate 40°, 14° dynamic support, 1" front/back, 1.6" up/downLumbar support adjusts vertically and horizontally
Warranty: 5 years3 years

Which is cheaper, the HBADA E3 Ultra or the SIHOO M18?

The SIHOO M18 is cheaper to start: $289.99 versus $809 for the HBADA E3 Ultra at the brand stores (Oct 2026).

Which has a headrest?

Both: the HBADA E3 Ultra as standard and the SIHOO M18 as standard.