Polk Audio Signa S4 Ultradünne Soundbar vs ULTIMEA Skywave X60

What Signa S4 Ultradünne Soundbar does better (0) and where Skywave X60 wins (1) — every spec side by side.

0 advantages≈ $460

ULTIMEA · 2026Skywave X60

1 advantage≈ $540

Why is Signa S4 Ultradünne Soundbar better than Skywave X60?

Signa S4 Ultradünne Soundbar has no measurable advantages in this pair.

Specifications

Only differences	Polk Audio Signa S4 Ultradünne Soundbar≈ $460	ULTIMEA Skywave X60≈ $540
Sound
Speaker channels	3.1.2	7.1.4
Channel count	3.1	7.1
Subwoofer	Wireless subwoofer included	Wireless subwoofer included
Spatial / 3D audio	Yes	—
Dolby Atmos	Yes	Yes
Stereo	Yes	Yes
Battery & charging
Mains powered	Yes	Yes
Battery powered (portable)	No	No
Connectivity
Wireless	Yes	No
Design & build
Width	1,046 mm	—
Colours	Black	Black