LG UT70 50" vs Samsung CU8000 55"
Both TVs deliver solid 4K performance at budget-friendly prices, but they cater to different priorities. LG's UT70 offers excellent value at $329 for a 50-inch display with webOS 24's intuitive interface and three-way voice assistant support (ThinQ AI, Alexa, Google). Samsung's CU8000 steps up with a larger 55-inch screen, superior HDR10+ support, and slightly better gaming performance (12ms input lag vs. 14ms). Picture quality differs subtly: Samsung's Crystal UHD LED panel provides marginally better contrast, while both match at 300 nits brightness. Audio remains identical across both models at 20W, 2.0-channel speakers. Samsung's faster Bluetooth 5.2 and Crystal Processor give modest advantages in connectivity and processing. For budget shoppers prioritizing screen size and HDR capabilities, Samsung's CU8000 justifies the $70 premium. However, those valuing smart TV versatility and compact footprint will appreciate LG's thoughtful ecosystem integration.
Full Specifications
| Spec | LG UT70 50" | Samsung CU8000 55" |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 200 x 200mm |
| Weight | 21.2 lbs | 27.1 lbs |
| Dimensions (w/ stand) | 44.1 x 28.2 x 8.3 inches | 48.8 x 30.8 x 8.8 inches |
| Audio | ||
| Output (watts) | 20 | 20 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 14 | 12 |
| Display | ||
| HDR | HDR10, HLG | HDR10+, HLG |
| Size | 50" | 55" |
| Type | LED | Crystal UHD LED |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K UHD) |
| Refresh rate | 60Hz | 60Hz |
| Brightness (nits) | 300 | 300 |
| Smart TV | ||
| Os | webOS 24 | Tizen OS |
| Voice assistant | ThinQ AI, Alexa, Google Assistant | Bixby, Alexa |
| Processor | ||
| Chipset | α5 AI Processor 4K Gen 7 | Crystal Processor 4K |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 (802.11ac) | Wi-Fi 5 (802.11ac) |
| Ethernet | ||
| Bluetooth | 5.0 | 5.2 |
| USB ports | 1 | 1 |
| HDMI ports | 3 | 3 |
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
Samsung CU8000 55"
Pros
- Very affordable entry into Samsung's 4K smart TV lineup
- HDR10+ support improves contrast in compatible content
- Tizen OS is a mature, full-featured smart TV platform
- Lightweight and easy to wall-mount at 27 lbs
- Crystal Processor 4K provides decent upscaling from 1080p
Cons
- 60Hz panel — no 120Hz for smooth gaming or sports
- Low peak brightness limits HDR impact
- No VRR or HDMI 2.1 — poor for next-gen consoles
- 20W speakers sound thin — a soundbar is essential
Related Comparisons
Explore more in tvs, see all LG products or all Samsung products. View full details for the LG UT70 50" or the Samsung CU8000 55".