It makes sense comparing Sony XBR55A9F 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 XBR55A9F belongs to the series A9F, and the LG 49LJ5100 - LJ5100. The Sony XBR55A9F series has 55, 65 inches diagonals, and 49LJ5100 boasts 49 inches diagonals.
The XBR55A9F 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 XBR55A9F has the OLED display, while 49LJ5100 has the IPS display. The LG 49LJ5100 works with 60Hz refresh rate, for Sony XBR55A9F the refresh rate is 120Hz.
The XBR55A9F plays sound in surround format, and stereo sound is available on 49LJ5100. The speaker power of the Sony XBR55A9F is 78W, versus 10W of the LG 49LJ5100. However, only the XBR55A9F has Dolby Atmos multi-channel audio format support.
The width of the XBR55A9F is 122.8/48.34 cm/in, and for the 49LJ5100 it is 110.74/43.59 cm/inches. The height of Sony XBR55A9F is 71.1/27.99 cm/in, LG 49LJ5100 of height 65.8/25.9 cm/inches. A depth XBR55A9F is 8.61/3.38 cm/in, the 49LJ5100 has 8.1/3.18 cm/in depth.
The XBR55A9F has 4 HDMI connectors versus 2 connectors in the 49LJ5100. As for USB, the XBR55A9F has 3 ports, compared with 1 ports for the 49LJ5100. Only the Sony XBR55A9F has the ability to connect to the Internet via WI-FI.
VESA sizes differ and amount to 400 x 200 versus 300 x 300 for the LG 49LJ5100.
You can watch Netflix TV shows and movies on only on the XBR55A9F.
As for Smart TV, only Sony XBR55A9F has this feature. Local dimming technology is no available in both models. Voice control is not available for these models.
The Sony XBR55A9F is better TV in this comparison. Check Sony XBR55A9F price