Cooler Master Caliber R3 vs SIHOO B300 Pro

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

VS
SIHOO B300 Pro

SIHOO

SIHOO B300 Pro

$329.99 – $379.99

$30

lower starting price for Cooler Master Caliber R3 than SIHOO B300 Pro at the brand stores

Differences at a glance

Cooler Master Caliber R3SIHOO B300 Pro
Price
$299.99$329.99 – $379.99
Seat height
48–56 cm46.8–55.3 cm
Seat depth
54 cm16.5–18.5 in (≈ 42-47 cm)
Load capacity
330 lb330 lb (≈ 150 kg)
Recline
90–180°Three lockable recline angles: 105°, 120°, 135°
Arms
2D6D All-Around Armrests (rotate, adjust, flip up)
Headrest
memory foam pillow3D Ultra-Wide Headrest
Lumbar support
memory foam pillow4D MicroFit Lumbar Support: 0.8" depth and 2" height adjustment

Questions

Which is cheaper, the Cooler Master Caliber R3 or the SIHOO B300 Pro?

The Cooler Master Caliber R3 is cheaper to start: $299.99 versus $329.99 for the SIHOO B300 Pro 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 B300 Pro as standard.

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