HBADA E3 Ultra vs SIHOO Doro S100

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 Doro S100

$499.99 – $509.99

2 years

longer warranty on HBADA E3 Ultra than SIHOO Doro S100 (official terms)

Differences at a glance

HBADA E3 UltraSIHOO Doro S100

Price: $809$499.99 – $509.99
Seat depth: 1.97" seat-depth adjustment (HBADA does not publish the seat-depth range)15.15–17.12 in (≈ 38.5-43.5 cm)
Load capacity: 330 lb330 lb (≈ 150 kg)
Recline: Reclines up to 140° with multiple locking positionsReclines up to 135°
Arms: 720° Omni-Mechanical Armrests: 360° pad rotation and body swivel4D coordinated armrests (Up and down, left, right, forward and backward, tilt linkage); Up and down 2.76 in, forward and back 1.18 in, side to side, rotate 72°
Headrest: 4D Biaxial Adjustable Headrest: frame rotation 70°, tilt and rotation 70°, up/down 1.8", forward/backward 2.2"Integrated headrest adjusts up or down; upper backrest in five levels
Lumbar support: 3-Zone Elastic Lumbar Support: wings rotate 40°, 14° dynamic support, 1" front/back, 1.6" up/downDual dynamic lumbar support
Warranty: 5 years3 years

Which is cheaper, the HBADA E3 Ultra or the SIHOO Doro S100?

The SIHOO Doro S100 is cheaper to start: $499.99 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 Doro S100 as standard.