It makes sense comparing Hitachi 55R80 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 55R80 belongs to the series R80, and the LG 49LJ5100 - LJ5100. The Hitachi 55R80 series has 49, 55 inches diagonals, and 49LJ5100 boasts 49 inches diagonals.
The 55R80 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 55R80 has the VA display, while 49LJ5100 has the IPS display. The LG 49LJ5100 works with 60Hz refresh rate, for Hitachi 55R80 the refresh rate is 120Hz. High dynamic range (HDR) is not available on each model.
Sound in the stereo format is available to each TV. The speaker power of the Hitachi 55R80 is 16W, 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 55R80 is 122.8/48.34 cm/in, and for the 49LJ5100 it is 110.74/43.59 cm/inches. The height of Hitachi 55R80 is 71.1/28 cm/in, LG 49LJ5100 of height 65.8/25.9 cm/inches. A depth 55R80 is 7.6/3.1 cm/in, the 49LJ5100 has 8.1/3.18 cm/in depth.
The 55R80 has 3 HDMI connectors versus 2 connectors in the 49LJ5100. And you also can connect up to 1 devices via USB to each of the models. Only the Hitachi 55R80 has the ability to connect to the Internet via WI-FI. There is a native support for a mouse and keyboard in these rivals.
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 55R80.
As for Smart TV, only Hitachi 55R80 has this feature. Local dimming technology is no available in both models. Voice control is not available for these models.
The Hitachi 55R80 is better TV in this comparison. Check Hitachi 55R80 price