It makes sense comparing Samsung UN55RU8000FXZA 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 UN55RU8000FXZA belongs to the series RU8000, and the LG 49LJ5100 - LJ5100. The Samsung UN55RU8000FXZA series has 49, 55, 65, 75, 82 inches diagonals, and 49LJ5100 boasts 49 inches diagonals.
The UN55RU8000FXZA 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 UN55RU8000FXZA has the VA display, while 49LJ5100 has the IPS display. The LG 49LJ5100 works with 60Hz refresh rate, for Samsung UN55RU8000FXZA the refresh rate is 120Hz.
Sound in the stereo format is available to each TV. The speaker power of the Samsung UN55RU8000FXZA is 20W, 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 UN55RU8000FXZA is 123.7/48.7 cm/in, and for the 49LJ5100 it is 110.74/43.59 cm/inches. The height of Samsung UN55RU8000FXZA is 71.37/28.09 cm/in, LG 49LJ5100 of height 65.8/25.9 cm/inches. A depth UN55RU8000FXZA is 5.84/2.29 cm/in, the 49LJ5100 has 8.1/3.18 cm/in depth.
The UN55RU8000FXZA has 4 HDMI connectors versus 2 connectors in the 49LJ5100. As for USB, the UN55RU8000FXZA has 2 ports, compared with 1 ports for the 49LJ5100. Only the Samsung UN55RU8000FXZA has the ability to connect to the Internet via WI-FI.
VESA sizes differ and amount to 200 x 200 versus 300 x 300 for the LG 49LJ5100.
You can watch Netflix TV shows and movies on only on the UN55RU8000FXZA.
As for Smart TV, only Samsung UN55RU8000FXZA has this feature. Local dimming technology is no available in both models. Voice control is not supported by both models and it’s difficult to determine a leader. Voice assistant Amazon Alexa is implemented only on UN55RU8000FXZA.
The Samsung UN55RU8000FXZA is better TV in this comparison. Check Samsung UN55RU8000FXZA price