It makes sense comparing Vizio M21d-H8 vs Samsung HW-LST70T because they both are able to give some premium features. Based on our rating, M21d-H8 has a total rating of 5 out of 10 versus 6.4 for HW-LST70T. The competitors' control buttons are different: power, volume down, volume up, source, Bluetooth 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 M21d-H8 has 2.1 versus 3.0 for the Samsung HW-LST70T. Competitors have a built-in subwoofer. The Vizio M21d-H8 got our rating of 5 out of 10, and the Samsung HW-LST70T 6 for its 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 Vizio M21d-H8 has 1/1 HDMI inputs/outputs versus 1/0 of the Samsung HW-LST70T. Only the M21d-H8 supports HDMI Audio Return Channel (ARC). Both soundbars have a USB connector. For connectivity, each of the soundbars received a rating of 6/10.
App control is available for the HW-LST70T. A built-in microphone is present in each model. 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.