LG UN343H 55UN343H 55"

★★★★☆ 3.5 (2)

The Direct-LED panel delivers native 4K resolution with HDR10 and HLG compatibility, paired with a dedicated hospitality control interface including RS-232 and ECI for seamless set-top box integration. Three HDMI inputs and a 20W stereo speaker system provide practical connectivity and audio for in-room use without external devices. This display is best for hotel operators needing a reliable, easily managed 55-inch screen for guest entertainment and information delivery.

Screen 55"
Resolution 3840x2160
Panel LED
Refresh 60 Hz
HDR HDR10, HLG
hdmi version 2.0
LG UN343H 55UN343H 55" tv
42 Overall Score

No current retailer price

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Snapshot

The 30-Second Version

The LG UN343H is a hospitality TV with solid 4K picture quality but almost no smart features. It's built for hotel rooms and rentals, not living rooms. At USD 695 from Amazon it's fair for property owners, but regular buyers should look at TCL or Hisense instead.

Pros & Cons

Pros

  • Native 4K resolution with decent picture quality for the price 73rd
  • Hospitality features like RS-232 and ECI control are genuinely useful for rentals 66th
  • Three HDMI inputs give you room for a cable box, streaming stick, and console
  • Direct-LED panel keeps it simple and reliable

Cons

  • Smart features are basically nonexistent, 7th percentile in our database
  • 400 nits peak brightness makes HDR feel underwhelming
  • 60Hz panel and 8ms response time are rough for gaming
  • Only 2 customer reviews, so long-term reliability is hard to judge

What owners think

The Word on the Street

3.5/5 (2 reviews)
👍 Owners who bought this back in 2018 still say it holds up well as a basic smart TV with plenty of streaming apps
🤔 A common note is that HDR support is nice to have but doesn't look dramatically better than standard content

The proof

Performance

The 55UN343H runs a Direct-LED panel with a 1200:1 static contrast ratio and 400 nits peak brightness. That puts picture quality in the 74th percentile of our database, which is solid for a hospitality display. HDR is there on paper with HDR10 and HLG, but 400 nits isn't enough to make HDR pop the way it does on brighter sets. Gaming is a weak spot, 60Hz refresh and 8ms response time land it in the 41st percentile. The 20W stereo speakers are fine for hotel room volume but nothing special, sitting in the 34th percentile for audio.

Performance Percentiles

HDR 60.3
Audio 32.8
Smart 6
Gaming 41
Display 65.6
Connectivity 41.4
Social Proof 22.7
Affordability 58.3
Picture Quality 73.4

Specifications

Full Specifications

Display

Size 55"
Resolution 4K
Panel Type LED
Backlight Direct LED
Aspect Ratio 16:9
Curved No

Picture Quality

Brightness 400 nits
Peak Brightness 400
Contrast Ratio 1200:1
Color Gamut 16.7 Million Colors

HDR

HDR Formats HDR10, HLG
Dolby Vision No
HDR10+ No
HLG Yes

Gaming

Refresh Rate 60 Hz
Response Time 8

Audio

Speaker Config 2
Wattage 20
Dolby Atmos No

Connectivity

HDMI Ports 3
HDMI Version 2
USB Ports 1
Ethernet No
Optical Audio Yes
VESA Mount 300x300

Power & Size

Power 135
Energy Star No
Weight 14.0 kg / 30.9 lbs

vs Competition

Against the competition, the UN343H is playing a different game. The TCL QM8K and Hisense U8 Series both crush it on brightness and smart features, and they cost about the same for a consumer buyer. The Roku Plus Series 55R6C7 is a more direct budget rival with a far better smart platform. Even the Samsung Neo QLED QN70F and Sony BRAVIA XR XR77A95L are in another league entirely, but they're also way more expensive. The LG's only real edge is the hospitality control suite, which none of those consumer sets offer.

Spec LG UN343H 55UN343H 55" Samsung QN990F Sony BRAVIA 9 K85XR90 Hisense U7 Series 65U75QG TCL QM8K Series 75QM8K Roku Pro Series 55R8C5
Screen Size 55 75 85 65 75 55
Resolution 3840x2160 7680x4320 3840x2160 3840x2160 3840x2160 3840x2160
Panel Type LED Mini-LED Mini-LED Mini-LED Mini-LED Mini-LED
Refresh Rate 60 120 120 165 144 120
Hdr HDR10, HLG HDR10, HDR10+, HLG HDR10, HLG, Dolby Vision Dolby Vision, HDR 10+, HDR 10, Hybrid Log-Gamma (HLG) Dolby Vision, HDR 10, HDR 10+, Hybrid Log-Gamma (HLG) Dolby Vision, HDR 10+, Hybrid Log-Gamma (HLG)
Smart Platform - Tizen Google TV Google TV Google TV Roku TV
Dolby Vision false false true true true true
Dolby Atmos false true true true true true
Hdmi Version 2.0 2.1 2.1 2.1 2.1 2.1
Compare Compare Compare Compare Compare
Product HDRAudioSmartGamingDisplayConnectivitySocial ProofAffordabilityPicture Quality
LG UN343H 55UN343H 55" 60.332.864165.641.422.758.373.4
Samsung QN990F Compare 82.199.892.488.199.699.999.612.683.3
Sony BRAVIA 9 K85XR90 Compare 8697.490.678.69592.986.612.378
Hisense U7 Series 65U75QG Compare 90.195.295.195.183.796.686.651.397.5
TCL QM8K Series 75QM8K Compare 90.195.298.793.289.392.986.633.399.4
Roku Pro Series 55R8C5 Compare 74.485.783.988.178.192.993.550.136.1

Price

Value & Pricing

Pricing is all over the place. US listings range from USD 695 to USD 800, with Amazon carrying the lower end of that spread. For a 55-inch 4K panel with hospitality control features, USD 695 is reasonable if you're outfitting a rental or small hotel. But if you're just looking for a living room TV, that same money buys you a much smarter set with better HDR from TCL or Hisense. The CAD 947 listing in Canada feels steep for what you get.

Read more

Overview

The LG UN343H 55UN343H is a hospitality TV first, a living room TV second. It's built for hotel rooms and rental properties, with RS-232 control and IR passthrough for set-top boxes. That means it's durable and simple, but it skips a lot of the smart features you'd expect from a consumer LG set.

Picture quality is actually decent for a budget panel. You get a native 4K resolution, HDR10 and HLG support, and 400 nits of brightness. It's not going to blow anyone away, but for in-room entertainment it gets the job done.

Common Questions

Q: Does this TV work with a regular streaming stick?

Yes, it has 3 HDMI inputs, so a Roku, Fire Stick, or Chromecast plugs right in. Just don't expect much from the built-in smart platform.

Q: Is the HDR any good on this panel?

It supports HDR10 and HLG, but with only 400 nits peak brightness the effect is subtle. It's better than nothing but won't match a brighter QLED or OLED.

Q: Can I use this as a gaming TV?

You can, but it's not great. The 60Hz panel and 8ms response time put it in the 41st percentile for gaming in our database. Casual play is fine, competitive gamers should look elsewhere.

Who Should Skip This

Skip this if you want a smart TV for your living room. The smart features rank in the 7th percentile of our database, which is basically dead last. You'd be paying for RS-232 and ECI control ports you'll never touch. If you need good HDR or gaming performance, look at the TCL QM8K or Hisense U8 Series instead, they're brighter and faster for similar money.

Verdict

Buy this if you run a vacation rental, small hotel, or any property where you need centralized control and don't want guests messing with settings. It's a reliable 4K panel with the right ports and control protocols. For everyone else, skip it. You're paying for hospitality features you'll never use and giving up smart TV functionality that's standard on cheaper consumer sets.

Usage Scores

Overall (41.6)Budget (58.3)Gaming (43.9)Movies (39.8)Sports (48.2)Outdoor (34.7)Portable (29.3)Corporate (42.4)Streaming (37.6)Smart Home (28.7)
  • Overall41.6
  • Budget58.3
  • Gaming43.9
  • Movies39.8
  • Sports48.2
  • Outdoor34.7
  • Portable29.3
  • Corporate42.4
  • Streaming37.6
  • Smart Home28.7

Other Configurations4

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