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LG UA75 50" 4K UHD Smart TV vs LG 75B QNED 4K Smart TV

The two listings disagree on size, so check the model number before you buy: the UA75 is a 50-inch set, while the 75B listing describes a 75-inch QNED panel. On paper the 75B has the better panel and newer chip, with Mini LED backlighting, HDR10 Pro and the Gen9 processor against the UA75's plain LED, HDR10 and Gen8. The UA75 is the safer pick for a small room or a second TV, and it adds Dolby-free but broad voice support and cloud gaming apps. Owners rate the UA75 well at 4.3 from over 10,000 ratings; the 75B has too little owner feedback to judge reliability.

  • Choose the LG UA75 if you want a 50-inch 4K set for a bedroom or smaller room and value webOS apps, Game Optimizer and cloud gaming over panel brightness.
  • Choose the LG 75B QNED if you have the wall space for a 75-inch screen and want Mini LED contrast, HDR10 Pro and the newer Gen9 processor.

Prices

  • LG UA75 50" 4K UHD Smart TV: $268.00 at Walmart (last seen Nov 13)
  • LG 75B QNED 4K Smart TV: $1,999.99 at B&H Photo-Video-Audio (last seen Nov 4)
  • Difference: the LG UA75 50" 4K UHD Smart TV is $1,731.99 cheaper than the LG 75B QNED 4K Smart TV at the latest prices (Nov 4 and Nov 13)
LG
LG 50" 4K UHD UA75 AI Smart TV

LG UA75 50" 4K UHD Smart TV

LG 50" 4K UHD UA75 AI Smart TV

4.3(10,774 ratings)
$268.00at WalmartChecked Nov 13
See all prices and details
Visit Walmart
Pros
  • 50-inch size fits small rooms and apartments
  • Game Optimizer with cloud gaming apps built in
  • Works with Alexa, Google Assistant and Siri
  • Large owner base with a 4.3 average rating
Cons
  • 60 Hz panel with basic LED backlighting
  • HDR10 only, no HLG or HDR10 Pro
  • Older Gen8 processor and webOS 25
  • HDMI 2.0 ports limit 4K120 gaming
LG
LG 50" Class 75B QNED UHD 4K AI Smart WebOS TV

LG 75B QNED 4K Smart TV

LG 50" Class 75B QNED UHD 4K AI Smart WebOS TV

$1,999.99at B&H Photo-Video-AudioChecked Nov 4
See all prices and details
Visit B&H Photo-Video-Audio
Pros
  • QNED Mini LED panel gives deeper contrast
  • HDR10 Pro and HLG support
  • Newer Gen9 processor and webOS 26
  • Three HDMI ports with eARC and Bluetooth 5.3
Cons
  • Listing says 75 in, so confirm the exact model
  • 60 Hz native refresh rate
  • Google Assistant only for voice
  • Little owner feedback to judge long-term reliability

What separates them

LG UA75 50" 4K UHD Smart TVLG 75B QNED 4K Smart TV
Screen size50 in75 in per the listing
PanelStandard LED backlightQNED Mini LED
ProcessorAlpha 7 Gen8Alpha 7 Gen9
HDRHDR10HDR10 and HLG, HDR10 Pro processing
Smart platformwebOS 25 with 400+ free LG channelswebOS 26
Gaming featuresALLM plus Game Optimizer, GeForce NOW and Xbox Cloud GamingALLM and eARC, no cloud gaming apps listed
Voice assistantsAlexa, Google Assistant and Siri supportGoogle Assistant only
HDMI and BluetoothHDMI 2.0, Bluetooth unspecified3 HDMI with eARC, Bluetooth 5.3

Price history

  • LG 75B QNED 4K Smart TV: lowest $370.39 on Nov 1 at Best Buy; $1,999.99 on Nov 4.

Prices at every store

LG UA75 50" 4K UHD Smart TV

  • WalmartNew

    In stock

    $268.00Checked Nov 13
    Visit Walmart
Prices and history →

LG 75B QNED 4K Smart TV

  • LGNew

    Availability unknown

    $1,999.99Checked Nov 4
    Visit LG
  • B&H Photo-Video-AudioNew

    Availability unknown

    $1,999.99Checked Nov 4
    Visit B&H Photo-Video-Audio

Also available at

  • CuracaoCheck price at Curacao
  • eBayCheck price at eBay
  • Best BuyCheck price at Best Buy

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All 2 stores and price history →

Specs compared

SpecLG UA75 50" 4K UHD Smart TVLG 75B QNED 4K Smart TV
screen_size50 in75"
colorBlackBlack
Resolution4K UHD4K Ultra HD (3,840 x 2,160)
Refresh rate60 Hz60 Hz
ProcessorAlpha 7 AI Processor Gen8α7 AI Processor 4K Gen9
Smart platformWebOS 25webOS 26
High DefinitionYesYes
HDTV Format4K4K
Screen FormFlatFlat
Display TypeLEDLED
Assistant SupportGoogle Assistant, Amazon Alexa, SiriGoogle Assistant
HDRYesYes
Show all 34 specsShow fewer specs
SpecLG UA75 50" 4K UHD Smart TVLG 75B QNED 4K Smart TV
ConnectivityBluetooth, Wi-Fi, RF, USB, HDMI, Ethernet, Opti…Bluetooth, Wi-Fi, RF, USB, HDMI, Ethernet
Supported Streaming ServicesHulu, Netflix, Prime Video, YouTube, Disney+Netflix, Prime Video, YouTube, HBO, Disney+
Weight35.3 lb, 51 lb, 60 lb23 lb
Display technologyLED—
HDR formatHDR10—
HDMI versionHDMI 2.0—
Game featureALLM—
Voice assistantAlexa Ready—
Native refresh rate—60Hz Native

What reviewers say

LG UA75 50" 4K UHD Smart TV

  • 4.3 / 510,774 ratings

Owners rate it around 4.3 out of 5 across more than 10,000 ratings. Most praise the picture, the easy setup and webOS, while a minority complain about sound and black levels.

What people mention
  • Picture qualityPraisedOwners say 4K content looks sharp and colors are vivid for a set in this class.
  • Smart platformPraisedwebOS is described as quick to navigate with the main streaming apps in one place.
  • SoundCriticisedReviewers say the built-in speakers are weak, so a soundbar is often recommended.
  • Black levelsCriticisedSome owners find dark scenes look gray because the panel is edge-lit without local dimming.

Questions and answers

Which is better for a bright living room?
The 75B. Its QNED Mini LED backlight and HDR10 Pro handling hold contrast better in a bright room than the UA75's standard LED panel.
Which is better for gaming?
The UA75 is the easier pick for cloud gaming because Game Optimizer and the GeForce NOW and Xbox Cloud Gaming apps are built in. Both are 60 Hz sets, so neither suits high-frame-rate console play.
Which lasts longer?
Neither has a documented edge in lifespan. The UA75 has a large owner base averaging 4.3, while the 75B has too few owner reports to compare reliability.
Is the 75B worth stepping up to?
Yes if you want a much larger screen with a better panel and newer processor. Stay with the UA75 if the room is small or you want built-in cloud gaming and wider voice assistant support.
Do both run the same apps?
Both run LG's webOS with Netflix, Prime Video, Disney+ and YouTube. The UA75 adds LG's free channels and cloud gaming apps; the 75B lists HBO.
Do both support voice control?
The UA75 works with Alexa, Google Assistant and Siri. The 75B lists Google Assistant only.

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Buying guides that pick them

  • Best LG 50-inch 4K smart TVs
  • Best LG TVs
Panel type—4K QNED Mini LED
HDR support—HDR10 / HLG
Audio channels—2.0 Channel
Bluetooth version—5.3
HDMI inputs—3ea (supports eARC, ALLM)
Wi-Fi—Wi-Fi 5
Weight without stand—48.7 lbs
CEC Enabled—Yes
With Energy Saving Mode—Yes
Country Of Manufacture—Mexico
Width—43.8 in wide
Depth—2.8 in deep
HDMI Ports—3 HDMI ports