LG S65Q vs Samsung Q990B comparison definitely makes sense. Based on our rating, S65Q has a total rating of 5 out of 10 versus 9.8 for Q990B.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the LG S65Q has 3.1 versus 11.1.4 for the Samsung Q990B. The output power is different and equal to 330 (overall) W for the S65Q versus 656 (overall) W for the Q990B. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. The LG S65Q got our rating of 7 out of 10, and the Samsung Q990B 10 for its audio features and specs.
Spotify support is available on the Q990B.
Only the Samsung Q990B can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. The LG S65Q has 1/1 HDMI inputs/outputs versus 2/1 of the Samsung Q990B. The HDMI Audio Return Channel (ARC) feature supports both devices. Both soundbars have a USB connector. For connectivity, the S65Q received a rating of 7/10 versus 10/10, respectively.
App control is available for the Q990B. A built-in microphone is present only on the Q990B. Soundbars do not have Multi-room support.
Only the Q990B has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the Q990B. For multichannel surround LG S65Q got a rating of 6, and Samsung Q990B 10 out of 10.