It makes sense comparing LG SN5Y vs LG SN9YG because they both are able to give some premium features. Based on our rating, SN5Y has a total rating of 6 out of 10 versus 7 for SN9YG. The competitors' control buttons are different: power, volume down, volume up, function and power, volume down, volume up, function, play/pause, microphone, respectively.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the LG SN5Y has 2.1 versus 5.1.2 for the LG SN9YG. The output power is different and equal to 400 (overall) W for the SN5Y versus 520 (overall) W for the SN9YG. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. The LG SN5Y got our rating of 6 out of 10, and the LG SN9YG 8 for its audio features and specs.
Soundbars do not have AirPlay support. Spotify support not implemented in both soundbars.
Only the LG SN9YG 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.
Both models support voice control using Google Assistant. App control is available in every soundbar. A built-in microphone is present in each model. Soundbars do not have Multi-room support.
Only the SN9YG has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the SN9YG. For multichannel surround LG SN5Y got a rating of 5, and LG SN9YG 10 out of 10.