Cooler Master Caliber R3 vs SIHOO M18

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

Cooler Master

Cooler Master Caliber R3

$299.99

SIHOO

SIHOO M18

$289.99 – $299.99

Nearly the same price

$299.99 vs $289.99 starting prices at the brand stores (Cooler Master Caliber R3 vs SIHOO M18)

Differences at a glance

Cooler Master Caliber R3SIHOO M18

Price: $299.99$289.99 – $299.99
Seat height: 48–56 cm44–54 cm
Seat depth: 54 cm17.91 in (≈ 45.5 cm)
Load capacity: 330 lb330 lb (≈ 150 kg)
Recline: 90–180°Maximum 126° recline angle
Arms: 2DAdjustable armrests (Up and down)
Headrest: memory foam pillowHeadrest moves 3.9" up and down and pivots 45°
Lumbar support: memory foam pillowLumbar support adjusts vertically and horizontally

Which is cheaper, the Cooler Master Caliber R3 or the SIHOO M18?

The SIHOO M18 is cheaper to start: $289.99 versus $299.99 for the Cooler Master Caliber R3 at the brand stores (Oct 2026).

Which has a higher weight capacity?

Neither. Both are rated for 330 lb in their official specifications.

Which has a headrest?

Both: the Cooler Master Caliber R3 as standard and the SIHOO M18 as standard.