It makes sense comparing LG 55LH5750 vs Sony XBR49X900E 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 55LH5750 belongs to the series LH5750, and the Sony XBR49X900E - X900E. The LG 55LH5750 series has 55 inches diagonals, and XBR49X900E boasts 49, 55, 65, 75 inches diagonals.
The XBR49X900E is capable of playing video in 4K/UHD resolution, which is not true of the 55LH5750. Each of the compared devices supports Full HD resolution. The VA display is used in each of the models. The Sony XBR49X900E works with 120Hz refresh rate, for LG 55LH5750 the refresh rate is 60Hz.
Sound in the stereo format is available to each TV. The power of the speakers is identical. Dolby Atmos multi-channel audio format is not supported by both of the tested models.
The width of the 55LH5750 is 124.21/48.9 cm/in, and for the XBR49X900E it is 109.3/43.03 cm/inches. The height of LG 55LH5750 is 72.39/28.5 cm/in, Sony XBR49X900E of height 63.1/24.84 cm/inches. A depth 55LH5750 is 5.59/2.2 cm/in, the XBR49X900E has 6.2/2.44 cm/in depth.
The 55LH5750 has 2 HDMI connectors versus 4 connectors in the XBR49X900E. As for USB, the 55LH5750 has 1 ports, compared with 3 ports for the XBR49X900E. These rivals can connect to the Internet via WI-FI. It is possible to connect a mouse or keyboard via Bluetooth to each of the TVs.
VESA sizes differ and amount to 400 x 400 versus 200 x 200 for the Sony XBR49X900E.
You can watch Netflix TV shows and movies on each of the TVs. Hulu is available at each of the competitors.
As for Smart TV, here the competitors are equal and support this feature. Local Dimming technology is available in each model. Voice assistant Amazon Alexa is implemented only on XBR49X900E. Devices under consideration can be controlled using the Mobile App.
The Sony XBR49X900E is better TV in this comparison. Check Sony XBR49X900E price