It makes sense comparing Samsung HW-S40T vs LG S90QY because they both are able to give some premium features. Based on our rating, HW-S40T has a total rating of 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 Samsung HW-S40T has 2.0 versus 5.1.3 for the LG S90QY. The output power is different and equal to 100 W for the HW-S40T versus 440 (overall) W for the S90QY. Only the Samsung HW-S40T has a built-in subwoofer. The Samsung HW-S40T got our rating of 6 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. The Samsung HW-S40T has 1/0 HDMI inputs/outputs versus 1/1 of the LG S90QY. Only the S90QY supports HDMI Audio Return Channel (ARC). Both soundbars have a USB connector. For connectivity, the HW-S40T received a rating of 6/10 versus 8/10, respectively.
App control is available for the HW-S40T. None of the models under consideration have a built-in microphone. Soundbars do not have Multi-room support.
Only the S90QY has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the S90QY. For multichannel surround Samsung HW-S40T got a rating of 5, and LG S90QY 10 out of 10.