It makes sense comparing LG GX vs Samsung Q800B because they both are able to give some premium features. Based on our rating, GX has a total rating of 6.5 out of 10 versus 9.2 for Q800B.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the LG GX has 3.1 versus 5.1.2 for the Samsung Q800B. The output power is different and equal to 420 (overall) W for the GX versus 360 (overall) W for the Q800B. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. The LG GX got our rating of 7 out of 10, and the Samsung Q800B 8 for its audio features and specs.
Spotify support is available on the Q800B.
Only the Samsung Q800B can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Each soundbar has 1/1 HDMI inputs/outputs. The HDMI Audio Return Channel (ARC) feature supports both devices. Both soundbars have a USB connector. For connectivity, the GX received a rating of 8/10 versus 9/10, respectively.
App control is available in every soundbar. A built-in microphone is present only on the Q800B. Soundbars do not have Multi-room support.
Both devices have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices under review. For multichannel surround, each of the opponents received 10 points out of 10.