LG OLED77B5PUA 77" Class B5 Series OLED AI 4K UHD Smart webOS TV vs LG OLED G1 75" 4K OLED TV

Name: LG OLED77B5PUA 77" Class B5 Series OLED AI 4K UHD Smart webOS TV vs LG OLED G1 75" 4K OLED TV — Comparison Review
Item: LG OLED77B5PUA 77" Class B5 Series OLED AI 4K UHD Smart webOS TV vs LG OLED G1 75" 4K OLED TV
Rating: 8.2
Author: Billy G.

By Billy G. · Founder & Lead EditorVerified Oct 20 by Billy G.

LG OLED77B5PUA 77"

LG OLED77B5PUA 77" Class B5 Series OLED AI 4K UHD Smart webOS TV

LG OLED G1

LG OLED G1 75" 4K OLED TV

Decision sheet: the facts that decide it

LG OLED77B5PUA 77" Class B5 Series OLED AI 4K UHD Smart webOS TV: 7 of 10 decision facts sourced.

LG OLED G1 75" 4K OLED TV: 0 of 10 decision facts sourced. Missing: Screen size, Panel, Resolution, Refresh rate, HDR, Peak brightness, HDMI 2.1 ports, VRR / ALLM, and 2 more.

	LG OLED77B5PUA 77" Class B5 Series OLED AI 4K UHD Smart webOS TV	LG OLED G1 75" 4K OLED TV
Price today	$1,499.99	Price not yet checked
Screen size	77 inches bestbuy.com	Not yet sourced
Panel	OLED bestbuy.com	Not yet sourced
Resolution	4K (2160p) bestbuy.com	Not yet sourced
Refresh rate	120Hz bestbuy.com	Not yet sourced
HDR	Yes bestbuy.com	Not yet sourced
Smart platform	webOS bestbuy.com	Not yet sourced
Starting MSRP	$2,999.99 bestbuy.com	Not yet sourced

Not yet sourced — LG OLED77B5PUA 77" Class B5 Series OLED AI 4K UHD Smart webOS TV: Peak brightness, HDMI 2.1 ports, VRR / ALLM. LG OLED G1 75" 4K OLED TV: Screen size, Panel, Resolution, Refresh rate, HDR, Peak brightness, HDMI 2.1 ports, VRR / ALLM, Smart platform, Starting MSRP. No manufacturer, official or retailer source we read publishes these yet; we don't estimate them.

Skip both if

Neither publishes peak brightness, HDMI 2.1 ports or VRR / ALLM yet.

The LG OLED77B5PUA 77" Class B5 Series OLED AI 4K UHD Smart webOS TV. And the LG OLED G1 75" 4K OLED TV both rely on self-emissive OLED panels that deliver deep blacks. And wide viewing angles, yet they diverge in screen size, refresh rate, and feature transparency. Public specifications list the B5 at a full 77 inches with a 120 Hz native refresh rate, confirmed Dolby Vision support, and an established retail price of $2,999.99, while the G1 is catalogued as 75 inches with less clearly documented panel speed and no fixed street price in current listings. Review aggregates note the B5’s webOS platform receives regular updates. And its α7 AI processor handles upscaling competently, whereas commentary on the G1 centers on its earlier-generation panel and the variability of its real-world pricing. The short version: choose the LG OLED77B5PUA when a known 77-inch OLED with 120 Hz capability. And firm pricing matters most; otherwise the LG OLED G1 remains an option only if a slightly smaller screen and opaque specifications are acceptable.

Verdict: Pick LG OLED77B5PUA if you need a known 77‑inch OLED with 120Hz refresh, Dolby Vision and a clear $2,999.99 price. Pick LG OLED G1 if you prefer a slightly smaller OLED and are willing to accept undisclosed specs and price. Neither publishes peak brightness, HDMI 2.1 ports or VRR / ALLM yet.

Provisional pick: LG OLED77B5PUA 77" Class B5 Series OLED AI 4K UHD Smart webOS TV — not enough sourced decision facts for LG OLED G1 75" 4K OLED TV. We don't rank on specs we can't verify.

Specs not yet sourced for LG OLED G1 75" 4K OLED TV — no manufacturer, official or retailer source we read publishes them yet.

Spec-by-spec comparison

	LG OLED77B5PUA 77" Class B5 Series OLED AI 4K UHD Smart webOS TV	LG OLED G1 75" 4K OLED TV
Screen size	77 inches	—
Panel	OLED	—
Resolution	4K (2160p)	—
Refresh rate	120Hz	—
HDR	Yes	—
HDMI ports	4	—

LG OLED77B5PUA 77" Class B5 Series OLED AI 4K UHD Smart webOS TV

What works

OLED panel with infinite native contrast
120Hz refresh rate for smooth motion
WebOS smart platform with built-in streaming services

What doesn't

Only 4 HDMI ports limit future expansion
No published peak brightness figure

LG OLED G1 75" 4K OLED TV

What works

OLED technology provides deep blacks

Bottom line

Provisional pick: LG OLED77B5PUA 77" Class B5 Series OLED AI 4K UHD Smart webOS TV — not enough sourced decision facts for LG OLED G1 75" 4K OLED TV.

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