It makes sense comparing VIZIO SB2821-D6 vs Samsung HW-LST70T because they both are able to give some premium features. Based on our rating, SB2821-D6 has a total rating of 4.8 out of 10 versus 6.4 for HW-LST70T. The competitors' control buttons are different: power, input, Bluetooth, volume down, volume up and volume down, volume up, power, source, respectively.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the VIZIO SB2821-D6 has 2.1 versus 3.0 for the Samsung HW-LST70T. 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 HDMI Audio Return Channel (ARC) does not support any one of these models. Both soundbars have a USB connector. For connectivity, the SB2821-D6 received a rating of 4/10 versus 6/10, 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.