LG UT70 50" vs Sony X80K 55" (LED)
The Verdict
Both TVs deliver 4K resolution at 60Hz, but they occupy different market tiers. LG's UT70 50" offers excellent value at $329, featuring webOS 24 with comprehensive voice assistant support and adequate 300-nits brightness for darker rooms. Sony's X80K 55" commands double the price at $699, justifying the premium through superior 500-nits peak brightness, Dolby Vision support, and Direct LED backlighting for better contrast control. Gaming performance is comparable (14ms vs 16ms input lag), though both lack VRR. Sony provides more HDMI ports (4 vs 3) and slightly superior audio with Dolby Atmos. For budget-conscious buyers prioritizing screen size and smart features, the LG excels; Sony suits those wanting brighter picture quality and premium HDR support. Choose the Sony X80K if picture quality matters most; pick the LG UT70 for outstanding value and adequate performance.
Who Should Buy
Buy the LG UT70 50" if…
- →webOS 24 smart TV platform at budget pricing — best-in-class software for the price
- →AI-assisted upscaling from the α5 processor improves SD/HD content
- →Magic Remote with point-and-click navigation included
Buy the Sony X80K 55" (LED) if…
- →Sony's X1 processor delivers noticeably better image processing than budget competitors
- →Dolby Vision and Dolby Atmos provide a premium HDR experience
- →Google TV with Chromecast built-in handles streaming beautifully
Category Scores
Pros & Cons
LG UT70 50"
Pros
- webOS 24 smart TV platform at budget pricing — best-in-class software for the price
- AI-assisted upscaling from the α5 processor improves SD/HD content
- Magic Remote with point-and-click navigation included
- Lightweight and easy to mount at 21 lbs
- Supports Alexa, Google Assistant, and Apple AirPlay 2
Cons
- 60Hz panel — no 120Hz or VRR for gaming
- Low brightness limits HDR impact
- No Dolby Vision — only basic HDR10
- Narrow viewing angles typical of budget VA panels
Sony X80K 55" (LED)
Pros
- Sony's X1 processor delivers noticeably better image processing than budget competitors
- Dolby Vision and Dolby Atmos provide a premium HDR experience
- Google TV with Chromecast built-in handles streaming beautifully
- Triluminos Pro color engine produces natural, accurate colors
- Four HDMI ports for connecting multiple devices
Cons
- 60Hz panel with no VRR — not for gaming
- 500 nits brightness limits HDR impact
- Edge-lit LED without local dimming has poor contrast
- 20W audio is thin and tinny
- Bluetooth 4.2 limits wireless audio options
Full Specifications
| Spec | LG UT70 50" | Sony X80K 55" (LED) |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 300 x 300mm |
| Weight | 21.2 lbs | 29.1 lbs |
| Dimensions (w/ stand) | 44.1 x 28.2 x 8.3 inches | 48.7 x 30.5 x 9.4 inches |
| Dimensions | — | 48.7 x 28.3 x 3.0 inches |
| Audio | ||
| Output (watts) | 20 | 20 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 14 | 16 |
| Display | ||
| HDR | HDR10, HLG | Dolby Vision, HDR10, HLG |
| Size | 50" | 55" |
| Type | LED | Direct LED (IPS / VA varies by size) |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K) |
| Refresh rate | 60Hz | 60Hz |
| Brightness (nits) | 300 | 500 |
| Smart TV | ||
| Os | webOS 24 | Google TV |
| Voice assistant | ThinQ AI, Alexa, Google Assistant | Google Assistant, Alexa |
| Processor | ||
| Chipset | α5 AI Processor 4K Gen 7 | — |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 (802.11ac) | Wi-Fi 5 |
| Ethernet | ||
| Bluetooth | 5.0 | 4.2 |
| USB ports | 1 | 2 |
| HDMI ports | 3 | 4 |
Related Comparisons
This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
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