LG 43LM6370PSB Review: Features, Specs, and Value in 43‑inch 4K TV

When you’re looking for a mid‑range 43‑inch TV that brings 4K resolution into a living room or bedroom without breaking the bank, the LG 43LM6370PSB is a name that surfaces frequently. This model balances price, picture quality, and smart‑TV functionality, making it a solid choice for casual streaming, gaming, and everyday viewing. Let’s dig into what makes the LG 43LM6370PSB tick, its strengths, and a few areas where it might not meet the highest expectations.

Design and Build – A Sleek, Space‑Saving Presence

The LG 43LM6370PSB sports a minimalist aesthetic that fits comfortably on a bookshelf or mounted on a wall. Its ultra‑thin profile (about 1.1 inches with the stand) keeps the focus on the screen rather than the chassis. The black frame is matte, reducing reflections in bright rooms. The stand is lightweight but sturdy, and the TV supports VESA 100 × 100 mm mounting, giving you flexibility for wall‑mount setups.

Picture Quality – 4K, HDR10, and Color Accuracy

At the heart of the LG 43LM6370PSB is an LG‑branded 4K (3840 × 2160) IPS panel with 120 Hz refresh rate. The panel’s wide color gamut (sRGB 99%) and HDR10 support deliver vibrant hues and a decent dynamic range, especially for HDR‑enabled content. While it doesn’t boast Dolby Vision, HDR10 is the most common HDR format among streaming services, so you’ll still enjoy a noticeable contrast lift compared to standard dynamic range (SDR) videos.

• • 4K resolution with 120 Hz motion smoothing
  

  • HDR10 support for enhanced contrast
  

  • 400 cd/m² peak brightness (sufficient for most living rooms)
  

  • 98% DCI‑P3 coverage, giving bright, accurate colors

Local Color Adjustment

LG includes a “Local Dimming” feature, but it’s a basic implementation rather than full‑backlight control. The result is a mild improvement in contrast, especially in dark scenes, though it might not fully eliminate blooming artifacts around bright objects in a dark environment.

Sound – On‑Screen Speakers or External Audio?

The TV comes with a 20‑watt stereo speaker system. For most casual use—TV shows, Netflix, and YouTube—it’s adequate. However, gamers or cinephiles who enjoy immersive audio will find it lacking. If you’re a serious movie lover, pairing the TV with a soundbar or an AV receiver will provide a much richer experience.

Smart TV Platform – LG webOS 4.0

LG’s webOS platform remains one of the most user‑friendly interfaces in the market. The 43LM6370PSB comes with the 4.0 version, which includes:

• • App store with Netflix, Amazon Prime, Disney+, Hulu, and more
  

  • Built‑in Google Assistant and Alexa voice control via a companion app
  

  • Picture‑in‑Picture (PiP) and picture‑by‑picture (PbP) modes for multitasking
  

  • ThinQ AI for remote control and home‑automation integration

Updating the firmware is straightforward through the settings menu, ensuring you get the latest app support and security patches.

Connectivity – Ports, Inputs, and Expansion

The LG 43LM6370PSB offers a balanced set of ports that covers most media needs:

• • 3 HDMI 2.0 inputs (one with ARC support)
  

  • 2 USB ports (one for media playback, one for peripherals)
  

  • 1 Optical audio out (to connect a soundbar or AV receiver)
  

  • 1 3.5 mm headphone jack (for private listening)
  

  • 1 3‑pole audio jack for analog audio sources

For gaming, the HDMI 2.0 ports support 4K at 60 Hz, which is suitable for most consoles. The inclusion of ARC allows a single cable to manage audio between the TV and a soundbar.

Gaming Performance – Smoothness and Latency

Gamers often worry about input lag and frame rates. The LG 43LM6370PSB’s 120 Hz panel, combined with LG’s “Game Mode” (which reduces processing delays), delivers an average input lag of around 16 ms—acceptable for most casual gamers. The 4K 60 Hz output is the sweet spot for PS5 and Xbox Series consoles. However, the lack of HDMI 2.1 means you can’t push 4K at 120 Hz, a feature that newer models are starting to support.

Power Consumption – Efficiency in the Modern Home

Under typical usage, the TV draws about 110 W. This is on the higher end for a 43‑inch panel, but the IPS panel’s energy efficiency is better than older LED panels. Turning on Eco Mode can reduce power usage by up to 20% while slightly dimming the display.

Pros and Cons – Quick Takeaway

• Pros:
  

  • Affordable 4K 43‑inch TV with a clean design
  

  • Good HDR performance for the price
  

  • Robust smart TV interface and voice control options
  

  • Reasonable connectivity and gaming support

• Cons:
  

  • Limited local dimming, so contrast isn’t top‑tier
  

  • Built‑in speakers lack depth for cinematic audio
  

  • No HDMI 2.1 support limits future‑proofing

Value Proposition – Is It Worth the Price?

The LG 43LM6370PSB is positioned in the mid‑range segment, typically priced around $400–$500, depending on retailer and sales. For that price, you get a 4K IPS panel, a solid smart platform, and a decent gaming experience. If your budget is tighter, older 43‑inch LED models may offer lower prices but at a lower picture quality