LG SN8YG vs LG SLM4R comparison definitely makes sense. Based on our rating, SN8YG has a total rating of 6.8 out of 10 versus 5.2 for SLM4R. The competitors' control buttons are different: power, volume down, volume up, function, play/pause, microphone and power, volume down, volume up, function, respectively.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the LG SN8YG has 3.1.2 versus 4.1 for the LG SLM4R. The output power is different and equal to 440 (overall) W for the SN8YG versus 420 (overall) W for the SLM4R. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. Both models received our 7 rating of 10 for their audio features and specs.
Soundbars do not have AirPlay support. Spotify support not implemented in both soundbars.
Only the LG SN8YG can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Only the SN8YG supports HDMI Audio Return Channel (ARC). Both soundbars have a USB connector. For connectivity, the SN8YG received a rating of 8/10 versus 6/10, respectively. App control is available in every soundbar. A built-in microphone is present only on the SN8YG. Soundbars do not have Multi-room support.
Only the SN8YG has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the SN8YG. For multichannel surround LG SN8YG got a rating of 10, and LG SLM4R 5 out of 10.