LG C5 OLED TV vs Vizio P-Series Quantum X 4K Smart TV

Name: LG C5 OLED TV vs Vizio P-Series Quantum X 4K Smart TV — Comparison Review
Item: LG C5 OLED TV vs Vizio P-Series Quantum X 4K Smart TV
Rating: 7.8
Author: Billy G.

By Billy G. · Founder & Lead EditorVerified Oct 14 by Billy G.

LG C5 OLED

LG C5 OLED TV

Vizio P-Series Quantum

Vizio P-Series Quantum X 4K Smart TV

Decision sheet: the facts that decide it

LG C5 OLED TV: 7 of 10 decision facts sourced.

Vizio P-Series Quantum X 4K Smart TV: 9 of 10 decision facts sourced.

	LG C5 OLED TV	Vizio P-Series Quantum X 4K Smart TV
Price today	$3,514.99	$459.99
Screen size	48 inches bestbuy.com	65 inches bestbuy.com
Panel	OLED bestbuy.com	LED bestbuy.com
Resolution	4K (2160p) bestbuy.com	4K (2160p) bestbuy.com
Refresh rate	120Hz bestbuy.com	120Hz bestbuy.com
HDR	Yes bestbuy.com	Yes bestbuy.com
HDMI 2.1 ports	Not yet sourced	3 vizio.com
VRR / ALLM	Not yet sourced	HDMI VRR vizio.com
Smart platform	webOS bestbuy.com	SmartCast bestbuy.com
Starting MSRP	$1,199.99 bestbuy.com	$1,199.99 bestbuy.com

Not yet sourced — LG C5 OLED TV: Peak brightness, HDMI 2.1 ports, VRR / ALLM. Vizio P-Series Quantum X 4K Smart TV: Peak brightness. No manufacturer, official or retailer source we read publishes these yet; we don't estimate them.

Pick Vizio P-Series Quantum X 4K Smart TV if

Lower price today — $459.99 vs $3,515

Skip both if

Neither publishes peak brightness yet.

Verified Confidence: 87%

The LG C5 OLED TV relies on its self-emissive pixels to deliver deep blacks. And infinite contrast ratios that the Vizio P-Series Quantum X 4K Smart TV cannot match with its Mini-LED backlight, while the Vizio model counters with higher peak brightness in bright rooms. And a wider range of screen sizes up to 65 inches. Public reviews consistently note the LG C5’s four HDMI 2.1 ports support full 4K 120 Hz with variable refresh rate including G-SYNC compatibility. And exceptionally low input lag, whereas the Vizio P-Series Quantum X offers more HDMI 2.1 ports on larger variants and a more aggressive price per inch that appeals to budget-conscious buyers seeking size over absolute contrast. Both sets run capable smart platforms and handle HDR content well, yet differences in panel technology and feature priorities create clear separation. Bottom line: choose the LG C5 OLED TV for reference-level contrast. And gaming precision in smaller rooms or select the Vizio P-Series Quantum X when screen size and value per dollar matter more.

Verdict: Pick LG C5 OLED TV if you value superior picture contrast, low‑lag gaming with G‑SYNC, and a compact 48‑inch design. Pick Vizio P-Series Quantum X if you need a larger 65‑inch screen, more HDMI 2.1 ports, and a lower price per inch. Neither publishes peak brightness yet.

LG C5 OLED TV lists at $3,514.99 while Vizio P-Series Quantum X 4K Smart TV lists at $459.99 — Vizio P-Series Quantum X 4K Smart TV undercuts LG C5 OLED TV by $3,055 (664%).

Winner: LG C5 OLED TV

LG C5 OLED TV: 7.8/10

Vizio P-Series Quantum X 4K Smart TV: 6.9/10

Spec-by-spec comparison

	LG C5 OLED TV	Vizio P-Series Quantum X 4K Smart TV
Screen size	48 inches	65 inches
Panel	OLED	LED
Resolution	4K (2160p)	4K (2160p)
Refresh rate	120Hz	120Hz
HDR	Yes	Yes
HDMI ports	4	4

LG C5 OLED TV

What works

OLED panel provides infinite native contrast ratio
webOS smart platform with Apple AirPlay 2
G‑SYNC Compatible for smoother gaming

What doesn't

Weight 37 pounds makes wall‑mounting more demanding

Vizio P-Series Quantum X 4K Smart TV

What works

65‑inch screen offers larger viewing area
Full Array Local Dimming delivers 5,000,000:1 contrast ratio
Three HDMI 2.1 ports support next‑gen gaming features

What doesn't

Weight 55.12 pounds complicates installation

Bottom line

Our pick: LG C5 OLED TV.

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