Samsung HW-LST70T vs Sony HT-S400 comparison definitely makes sense. Based on our rating, HW-LST70T has a total rating of 6.4 out of 10 versus 4.4 for HT-S400.
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 2.1 for the Sony HT-S400. The output power is different and equal to 210 (overall) W for the HW-LST70T versus 330 (overall) W for the HT-S400. Only the Samsung HW-LST70T has a built-in subwoofer. Rivals have wireless connection to separate subwoofer. Both models received our 6 rating of 10 for their audio features and specs.
Soundbars do not have AirPlay support. Spotify support is available on the HW-LST70T.
Only the Samsung HW-LST70T can 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 0/1 of the Sony HT-S400. Only the HT-S400 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 for the HW-LST70T. A built-in microphone is present only on the HW-LST70T. Multi-room is only available for the Samsung HW-LST70T.
None of soundbars equipped with Dolby Atmos multichannel audio decoder. The soundbars do not support the surround sound technology DTS:X. For multichannel surround, each of the opponents received 5 points out of 10.