LG SN11RG vs LG SLM4R comparison definitely makes sense. Based on our rating, SN11RG has a total rating of 7.5 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 SN11RG has 7.1.4 versus 4.1 for the LG SLM4R. The output power is different and equal to 770 (overall) W for the SN11RG versus 420 (overall) W for the SLM4R. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. The LG SN11RG got our rating of 9 out of 10, and the LG SLM4R 7 for its audio features and specs.
Soundbars do not have AirPlay support. Spotify support not implemented in both soundbars.
Only the LG SN11RG can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Only the SN11RG supports HDMI Audio Return Channel (ARC). Both soundbars have a USB connector. For connectivity, the SN11RG received a rating of 9/10 versus 6/10, respectively. App control is available in every soundbar. A built-in microphone is present only on the SN11RG. Soundbars do not have Multi-room support.
Only the SN11RG has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the SN11RG. For multichannel surround LG SN11RG got a rating of 10, and LG SLM4R 5 out of 10.