It makes sense comparing Samsung QN55Q8C vs LG 49LJ5100 because they both are able to give some premium features. The biggest difference between TVs is screen size, namely 55 and 49 inches respectively. The QN55Q8C belongs to the series Q8C, and the LG 49LJ5100 - LJ5100. The Samsung QN55Q8C series has 55, 65 inches diagonals, and 49LJ5100 boasts 49 inches diagonals.
The QN55Q8C is capable of playing video in 4K/UHD resolution, which can't be said for 49LJ5100. Each of the compared devices supports Full HD resolution. The QN55Q8C has the SVA display, while 49LJ5100 has the IPS display. The LG 49LJ5100 works with 60Hz refresh rate, for Samsung QN55Q8C the refresh rate is 120Hz.
The QN55Q8C plays sound in quadro format, and stereo sound is available on 49LJ5100. The speaker power of the Samsung QN55Q8C is 60W, versus 10W of the LG 49LJ5100. Dolby Atmos multi-channel audio format is not supported by both of the tested models.
The width of the QN55Q8C is 122.43/48.2 cm/in, and for the 49LJ5100 it is 110.74/43.59 cm/inches. The height of Samsung QN55Q8C is 70.36/27.7 cm/in, LG 49LJ5100 of height 65.8/25.9 cm/inches. A depth QN55Q8C is 9.14/3.59 cm/in, the 49LJ5100 has 8.1/3.18 cm/in depth.
The QN55Q8C has 4 HDMI connectors versus 2 connectors in the 49LJ5100. As for USB, the QN55Q8C has 3 ports, compared with 1 ports for the 49LJ5100. Only the Samsung QN55Q8C has the ability to connect to the Internet via WI-FI.
VESA sizes differ and amount to 400 x 400 versus 300 x 300 for the LG 49LJ5100.
You can watch Netflix TV shows and movies on only on the QN55Q8C.
As for Smart TV, only Samsung QN55Q8C has this feature. The QN55Q8C has Local Dimming technology. Voice control is not available for these models.
The Samsung QN55Q8C is better TV in this comparison. Check Samsung QN55Q8C price