Choosing between the LG 55" UR640S UHD Signage TV and the Samsung QMC Series 55"? Here's how they differ on platforms, screen and price, and which one fits your room.

Short answer: pick the LG 55" UR640S UHD Signage TV if you want the one that costs less. Pick the Samsung QMC Series 55" if you want a 55" 4K signage, 500 nits, 24/7, Tizen.
Both are conference room displays; the difference is screen and price.
Side by side
| LG 55" UR640S UHD Signage TV | Samsung QMC Series 55" | |
|---|---|---|
| Price | $1,040 | $1,109 |
| Screen size | 55" | 55" class |
| Resolution | 3840 x 2160 (UHD) | 3840 x 2160 (4K UHD) |
| Brightness | 400 nits | 500 nits |
| Panel | IPS (per LG feature description), contrast 1300:1 | VA, contrast 4,000:1 |
| Operating hours | 16/7 | 24/7 |
| Speakers | 2x 10W | — |
| Dimensions | — | 1237.9 x 708.8 x 28.5 mm |
| Weight | 30.9 lbs / 14.0 kg | — |
| Warranty | 3-year limited | — |
| Connections | Inputs: 2x HDMI (side), HDMI ARC, 1x USB-A, RJ45, RS-232C, Wi-Fi | Inputs: 3x HDMI 2.0, 1x DisplayPort 1.2, 2x USB, RJ45, RS232C in/out, Wi-Fi, Bluetooth |
Specs are LG and Samsung's published figures. Prices can change.
Which should you buy?
- Choose the LG 55" UR640S UHD Signage TV if you want the one that costs less. See the LG 55" UR640S UHD Signage TV
- Choose the Samsung QMC Series 55" if you want a 55" 4K signage, 500 nits, 24/7, Tizen. See the Samsung QMC Series 55"
Also compared
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Still deciding? Read the LG 55" UR640S UHD Signage TV guide and the Samsung QMC Series 55" guide, see 55" UR640S UHD Signage TV alternatives and QMC Series 55" alternatives, compare them interactively, or send us your room details for a recommendation.
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- LG 65" UR640S UHD Signage TV vs Samsung QHC Series 55"
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