It makes sense comparing Samsung UN43KU6300 vs LG 49LJ5100 because they both are able to give some premium features. The biggest difference between TVs is screen size, namely 43 and 49 inches respectively. The UN43KU6300 belongs to the series KU6300, and the LG 49LJ5100 - LJ5100. The Samsung UN43KU6300 series has 40, 43, 50, 55, 70 inches diagonals, and 49LJ5100 boasts 49 inches diagonals.
The UN43KU6300 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 UN43KU6300 has the SVA display, while 49LJ5100 has the IPS display. The LG 49LJ5100 works with 60Hz refresh rate, for Samsung UN43KU6300 the refresh rate is 120Hz.
Sound in the stereo format is available to each TV. The speaker power of the Samsung UN43KU6300 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 UN43KU6300 is 97.54/38.4 cm/in, and for the 49LJ5100 it is 110.74/43.59 cm/inches. The height of Samsung UN43KU6300 is 56.7/22.32 cm/in, LG 49LJ5100 of height 65.8/25.9 cm/inches. A depth UN43KU6300 is 6.35/2.5 cm/in, the 49LJ5100 has 8.1/3.18 cm/in depth.
The UN43KU6300 has 3 HDMI connectors versus 2 connectors in the 49LJ5100. As for USB, the UN43KU6300 has 2 ports, compared with 1 ports for the 49LJ5100. Only the Samsung UN43KU6300 has the ability to connect to the Internet via WI-FI. Support for WI-FI 5GHz is not implemented in the models under consideration.
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 UN43KU6300.
As for Smart TV, only Samsung UN43KU6300 has this feature. The UN43KU6300 has Local Dimming technology. Voice control is not available for these models.
The Samsung UN43KU6300 is better TV in this comparison. Check Samsung UN43KU6300 price