It makes sense comparing Samsung HW-LST70T vs LG SL9YG because they both are able to give some premium features. Based on our rating, HW-LST70T has a total rating of 6.4 out of 10 versus 8 for SL9YG. The competitors' control buttons are different: volume down, volume up, power, source and power, volume down, volume up, play/pause, microphone, respectively.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the Samsung HW-LST70T has 3.0 versus 4.1.2 for the LG SL9YG. The output power is different and equal to 210 (overall) W for the HW-LST70T versus 500 (overall) W for the SL9YG. Only the Samsung HW-LST70T has a built-in subwoofer. Rivals have wireless connection to separate subwoofer. The Samsung HW-LST70T got our rating of 6 out of 10, and the LG SL9YG 8 for its audio features and specs.
Soundbars do not have AirPlay support. Spotify is available on each of the soundbars.
These models have the ability to connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. The Samsung HW-LST70T has 1/0 HDMI inputs/outputs versus 1/1 of the LG SL9YG. Only the SL9YG supports HDMI Audio Return Channel (ARC). Both soundbars have a USB connector. For connectivity, the HW-LST70T received a rating of 6/10 versus 7/10, respectively.
App control is available in every soundbar. A built-in microphone is present in each model. Multi-room is available to every soundbar.
Only the SL9YG has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the SL9YG. For multichannel surround Samsung HW-LST70T got a rating of 5, and LG SL9YG 8 out of 10.