It makes sense comparing LG GX vs LG S90QY 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 8 for S90QY.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the LG GX has 3.1 versus 5.1.3 for the LG S90QY. The output power is different and equal to 420 (overall) W for the GX versus 440 (overall) W for the S90QY. 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 LG S90QY 8 for its audio features and specs.
Spotify support is available on the S90QY.
Only the LG S90QY 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, each of the soundbars received a rating of 8/10.
App control is available for the GX. None of the models under consideration have a built-in microphone. 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.